Recent Master Plumber Board Exam Problems

Your Report Wrong Q.1)

Of the four board subjects given for Master Plumbers examination, which of this subject was originally split into two subjects?

A. B. C. D. Wrong Q.2)

Copper tube and fittings used for drainage and vent piping installed aboveground shall be at least ____.

A. B. C. D. Correct Q.3)

36 inches 12 inches (Your Answer) 24 inches 48 inches

A branch line serving a trap in a combination waste and vent system is required to be separately vented when the length of the branch exceeds ____.

A. B. C. D. Wrong Q.6)

an approved airgap fitting (Your Answer) a double-check valve a triple-check valve an approved valve

Unions shall be installed in a water supply system within ____ to a water heater

A. B. C. D. Correct Q.5)

Type DWV (Correct Answer) Type L Type K Type M (Your Answer)

A domestic dishwasher drain shall first connect to ____.

A. B. C. D. Correct Q.4)

Plumbing Code Design and Installations Plumbing Arithmetic (Your Answer) Practical Problems (Correct Answer)

15 (Your Answer) 10 5 25

Three-inch horizontal drainage piping shall be run in practical alignment and at a uniform slope of not less than ____. A. B. C. D.

1/4 inch per foot (Correct Answer) 1/16 inch per foot 1/2 inch per foot (Your Answer) 1/8 inch per foot

Correct Q.7)

The minimum requirement for the slope of horizontal drainage pipes between manholes is

A. B. C. D. Wrong Q.8)

4% 2-1/2 % 2% (Your Answer) 3%

A drain connecting the compartments of a set of fixtures to its trap is called a(an) ____.

A. continuous waste (Correct Answer) B. special waste C. indirect waste (Your Answer) D. combination waste and vent Unanswered Q.9)

The maximum number of lavatories on a 2-1/2 inch horizontal waste line is ____.

A. B. C. D. Wrong

10 14 (Correct Answer) 20 6

Q.10) The maximum distance a gas shutoff valve may be from a gas appliance (except for range and dryer connectors) is ____. A. B. C. D. Wrong

6 feet (Correct Answer) 10feet 3 feet (Your Answer) 2 feet

Q.11) An ejector discharge line shall be provided with a ____ A. B. C. D. Correct

gate valve only backwater valve and gate valve (Correct Answer) backwater valve only swing check valve and a globe valve (Your Answer)

Q.12) In the water test of the entire plumbing system all openings should be tightly closed except at A. B. C. D. Wrong

protruding cleanouts bleeders stack vent highest opening (Your Answer)

Q.13) Because of structural conditions, a 4-inch house drain is installed with a slope of 1/8 inch per foot. This installation will result in a(an) ____.

A. B. C. D. Correct

increased scouring and cleansing action reduction in fixture unit loading allowance (Correct Answer) separation of solids and liquid (Your Answer) increased allowance in fixture unit loading

Q.14) A ____ may be installed with indirect waste A. B. C. D. Correct

water closet domestic kitchen sink drinking fountain (Your Answer) lavatory

Q.15) A ____ trap is not self-cleaning A. B. C. D. Correct

plaster cast-iron bell grease (Your Answer)

Q.16) Chemical or industrial liquid wastes that are likely to damage the public sanitary sewer system shall ____.

A. B. C. D. Wrong

be pretreated to render them innocuous (Your Answer) not be used under any condition be drained into a holding tank be drained into a storm drain

Q.17) A seamless drawn-brass fixture tailpiece shall be ____. A. B. C. D. Correct

24 B&S gauge (Your Answer) 20 B&S gauge (Correct Answer) 22 B&S gauge 26 B&S gauge

Q.18) Hub and spigot cast-iron piping in 10-foot lengths, installed horizontally, shall be supported at intervals of not more than ____. A. B. C. D. Wrong

10 feet (Your Answer) 12 feet 5 feet 15 feet

Q.19) Water heater vents terminate above a roof surface at least ____ from a vertical wall. *

A. B. C. D. Correct

12 inches (Correct Answer) 6 inches (Your Answer) 8 feet 3 feet

Q.20) The distance from the center of a water closet to any side wall or partition shall not be closer than ____. A. B. C. D. Correct

15 inches (Your Answer) 12 inches 24 inches 30 inches

Q.21) Drinking fountains may be installed with ____. A. B. C. D. Correct

steel pipe indirect wastes (Your Answer) yoke venting bell traps

Q.22) Joints at the roof around pipes shall be made watertight by the use of ____.

A. B. C. D. Correct

epoxy glue flashings (Your Answer) waterproof paint tar and paper

Q.23) A device to prevent backflow into the potable water system is called a ____. *

A. B. C. D. Correct

backflow connection siphon leg backflow preventer (Your Answer) back-siphonage

Q.24) Building sewers shall be tested by completely filling the sewer with water from the ____. *

A. lowest to the highest point (Your Answer)

B. lowest to at least ground level C. lowest to at least a 5-foot head D. lowest to at least a 10-foot head Wrong Q.25) A plumbing vent shall terminate not less than ____. A. B. C. D. Wrong

3 feet from an air intake 10 feet from an air intake (Correct Answer) 1 foot above the roof (Your Answer) 5 feet above a window

Q.26) Cleanouts may be omitted on a horizontal drain line less than 5 feet except for ____. A. B. C. D. Wrong

bathtubs water closets (Your Answer) sinks (Correct Answer) showers

Q.27) Except for plastic piping systems, hot and cold water piping may be tested with ____. A. 100 psi air for at least 10 minutes (Your Answer) B. 35 psi air for at least 15 minutes 50 psi air or the working pressure of the water in the system for at least 15 minutes (Correct C. Answer) D. 40 psi air or 150 psi water for 10 minutes Wrong Q.28) The depth of the finished dam of threshold for any shower, measured from the top of the drain, shall not be less than ____. A. B. C. D. Wrong

4 inches (Your Answer) 12 inches 2 inches (Correct Answer) 9 inches

Q.29) The vent for a kitchen sink serves as a drain for a laundry tub. The size of the wet-vented section is ____. A. B. C. D. Wrong

1-1/2 inches (Your Answer) 3 inches 2-1/2 inches 2 inches (Correct Answer)

Q.30) Gas piping with pressure less than 1/4-inch water column shall stand an air test of ____. A. B. C. D.

50 psi 30 psi 15 psi (Your Answer) not less than 3 psi (Correct Answer)

Wrong Q.31) Under no circumstances may gas appliance pressure regulators be vented ____. A. B. C. D. Wrong

to the gas utilization equipment flue or exhaust system (Correct Answer) using black iron pipe (Your Answer) to the combustion chamber near the pilot to the atmosphere

Q.32) A water heater vent may have one offset of not more than 60 degrees from the ____. A. B. C. D. Wrong

heater horizontal (Your Answer) roof vertical (Correct Answer)

Q.33) The aggregate cross-sectional area of all vents for a system with a required 4-inch sewer shall be at least ____. A. B. C. D. Wrong

12.56 square inches (Correct Answer) 4 square inches 7.06 square inches (Your Answer) 18 square inches

Q.34) That portion of a venting system that connects a water heater to a vent is a ____. A. B. C. D. Correct

chimney connector vent connector (Correct Answer) Type B vent (Your Answer) vent

Q.35) The minimum size of gas piping supply to a mobile home is ____.

A. B. C. D. Wrong

3/4 inch (Your Answer) 1/2 inch 2 inches 1 inch

Q.36) Pilots and burners of gas-fired water heaters (except sealed combustion chambers) in residential garages shall be ____ above the floor level. A. B. C. D. Wrong

24 inches 12 inches 18 inches (Correct Answer) 6 inches (Your Answer)

Q.37) PEX piping installed horizontally must be supported every ____ inches.

A. B. C. D. Wrong

48 24 36 (Your Answer) 32 (Correct Answer)

Q.38) One trap may serve a set of not more than ____.

A. three single-compartment sinks (Correct Answer) B. two double-compartment sinks C. two lavatories (Your Answer) D. three lavatories Unanswered Q.39) The exit terminals of mechanical draft systems shall be ____. A. B. C. D. Wrong

in the same story not over 10 feet from the vent not less than 7 feet above grade (Correct Answer) not over 20 feet from the vent

Q.40) The minimum size waste pipe for a residential kitchen sink is ____. A. B. C. D. Correct

3 inches 2-1/2 inches 2 inches (Correct Answer) 1-1/2 inches (Your Answer)

Q.41) Each drainage stack that extends 10 or more stories above the building drain shall be served by ____.

A. B. C. D. Correct

cleanouts at each floor a parallel vent stack (Your Answer) extra-heavy fittings straps every 5 feet

Q.42) All trenches deeper than the footing of any building or structure and paralleling the same must be at least ____. A. B. C. D. Wrong Q.43)

2 feet deep 45 degrees therefrom (Your Answer) 4 feet thereon 2 feet wide

Above ground schedule 40 PVC and ABS DWV plastic piping installed horizontally shall be

supported at intervals of no to exceed ____.

A. 10 feet B. 6 feet C. 2 feet (Your Answer) D. 4 feet (Correct Answer) Unanswered Q.44) Three-quarter inch or 1-inch gas piping installed horizontally shall be supported at intervals not to exceed ____. A. B. C. D. Wrong

6 feet 4 feet 8 feet (Correct Answer) 5 feet

Q.45) The terminal end of the drain for a pressure-relief valve shall not be ____. A. B. C. D. Wrong

painted reamed threaded (Correct Answer) open (Your Answer)

Q.46) One material not approved for the installation of an external trap for a urinal is ____.

A. B. C. D. Wrong

ABS cast brass drawn-brass tubing traps (Correct Answer) cast iron (Your Answer)

Q.47) The minimum common horizontal waste pipe serving a bathtub, a lavatory, and a kitchen sink shall be at least ____. A. B. C. D. Correct

3 inches 1 -1/2 inches (Your Answer) 2 - 1/2 inches 2 inches (Correct Answer)

Q.48) What kind of joint is not allowed in cast iron pipe? A. welded B. bell and spigot C. threaded (Your Answer)

D. soldered Correct Q.49) Wall-mounted water closet fixtures shall be securely bolted to ____. A. B. C. D. Wrong

the vent piping the drain piping a closet bend metal supporting members (Your Answer)

Q.50) The tailpiece for a lavatory shall not be less than ____. A. B. C. D. Correct

1-1/4 inch (Correct Answer) 1-1/2 inch (Your Answer) 1 inch 1-3/8 inch

Q.51) Unless serving sinks or urinals, cleanouts may be omitted on a horizontal drain line that is A. B. C. D. Correct

greater than 2.0 meters less than 1.5 meters (Your Answer) equal to 2.0 meters none of these

Q.52) What kind of concealed connections on fixtures that it is required to provide an access panel or utility at least 0.3 meter in its least dimension for easy inspection and repair?

A. B. C. D. Wrong

slip joint (Your Answer) hubless ball and socket flanged

Q.53) The sizing of gas vents for category II, III and IV shall be in accordance with ____. A. B. C. D. Correct

the manufacturers guide (Your Answer) the manufacturers instructions (Correct Answer) the gas company the vent connector company

Q.54) For a vertical drainage line that is installed to be truly in vertical position, what is the allowed degree of the branch to be used? * A. 15 B. 60 (Your Answer)

C. 45 D. 22.5 Wrong Q.55) The developed length between the trap of a water closet and its vent shall not exceed ____. A. B. C. D. Wrong

4 feet 12 inches (Your Answer) 30 inches 6 feet (Correct Answer)

Q.56) Single-wall metal pipe shall terminate at least 5 feet in vertical height above the highest connected equipment ____. A. B. C. D. Wrong

within a horizontal distance of 10 feet (Your Answer) draft hood draft hood outlet or flue collar (Correct Answer) or approved cap on the roof

Q.57) When sizing a copper fuel-gas piping system that has an inlet pressure of less than 2 psi with a pressure drop of 0.3 inch w.c., the maximum cubic feet per hour of gas flow allowed through a 5/8inch O.D. ACR tube 75 feet in developed length is ____. A. B. C. D. Correct

13 48 (Your Answer) 27 (Correct Answer) 68

Q.58) No trap for any clothes washer standpipe shall be installed ____. A. B. C. D. Wrong

18 inches above the floor in a partition 6 inches above the floor below the floor (Your Answer)

Q.59) The total number of closets on a 3-inch stack is ____. A. B. C. D. Wrong

four (Correct Answer) three two six (Your Answer)

Q.60) The maximum length for a 1-1/2-inch vent pipe is ____. A. B. C. D. Correct

50 feet 60 feet (Correct Answer) 20 feet (Your Answer) 30 feet

Q.61) What is the minimum age requirement for an appointee to become a member of the Board of Master Plumbers? A. B. C. D. Correct

Thirty five years old Thirty two years old Thirty years old (Your Answer) Twenty eight years old

Q.62) The minimum horizontal distance between a water supply well and the building sewer is ____.

A. B. C. D. Correct

50 feet (Your Answer) 100 feet 10 feet 15 feet

Q.63) Fixture traps shall have a water seal of not less than ____.

A. B. C. D. Wrong

12 inches 2 inches (Your Answer) 6 inches 4 inches

Q.64) Cast-iron soil pipe stacks shall be supported at ____. A. B. C. D. Wrong

their base and each floor (Correct Answer) intervals of 10 feet (Your Answer) intervals of 5 feet every other story

Q.65) A refrigerator used to store food and that requires drainage shall be drained by means of ____. A. B. C. D. Wrong

an indirect waste pipe (Correct Answer) both A and B a direct connection (Your Answer) no drain required

Q.66) No water heater (except direct vent water heaters and fuel burning water heaters installed in a closet with a listed, gasketed door assembly and listed self-closing device) that depends on the combustion of fuel for heat shall be installed in any ____. _ A. B. C. D.

garage kitchen basement (Your Answer) bedroom (Correct Answer)

Wrong Q.67)

The building sewer shall be determined on the basis of the total number of fixture units drained by such sewer in accordance with ____.

A. none of the above B. the maximum fixture load only C. the same table(s) as the building drain (Your Answer) D. Table 7-8 fixture unit loading (Correct Answer) Unanswered Q.68) Soil and drain pipes located above food-handling establishments shall be subjected to a standing water test of not less than ____ feet. A. B. C. D. Correct

12 25 10 (Correct Answer) 15

Q.69) A vent in a combination waste and vent system shall be approximately equal in area to one-half the ____. A. B. C. D. Correct

area of the house sewer cross-sectional of the drain pipe served (Your Answer) area of the public sewer diameter of the drain pipe served

Q.70) Concealed slip joint connection require a (an) ____. A. B. C. D. Correct

8 x 12 access panel 10 x 12 access panel 12 x 12 access panel (Your Answer) 18 x 18 access panel

Q.71) Water service pipes, or any underground water pipes, shall not be run or laid in the same trench with ____. A. B. C. D. Wrong

piping for a lawn sprinkler asbestos cement building sewer piping (Your Answer) cast-iron building sewer piping any other water pipe

Q.72) Sewer or other drainage piping that shall no be installed under or within 2 feet of any building or structure is ____. A. B. C. D. Wrong

ABS cast iron asbestos cement (Correct Answer) copper (Your Answer)

Q.73) In each run of horizontal drain piping, the distance between cleanouts shall not exceed ____. A. B. C. D. Wrong

50 feet (Your Answer) 300 feet 75 feet 100 feet (Correct Answer)

Q.74) A type B-W gas vent shall terminate at least ____ feet in vertical height above the bottom of the wall furnace A. B. C. D. Wrong

6 (Your Answer) 12 (Correct Answer) 8 4

Q.75) The minimum size trap and trap arm for a kitchen sink is ____. A. B. C. D. Correct

1-1/2 inches (Correct Answer) 2 inches (Your Answer) 3 inches 2-1/2 inches

Q.76) Sleeves shall be provided to protect all piping through ____ and ____ walls. A. concrete, masonry (Your Answer) B. ceiling, wooden C. wood, concrete D. floor, concrete Unanswered Q.77) Cast-iron soil pipe shall not be ____. A. B. C. D. Wrong

used belowground painted used for drain lines threaded (Correct Answer)

Q.78) Single-wall metal pipe shall be constructed of ____ not less than 0.0304 inch thick. A. B. C. D. Correct

PVC Sch 40 (Your Answer) galvanized, sheet steel (Correct Answer) copper sheet metal cast ironcast iron

Q.79) The maximum horizontal distance of a trap arm is measured from the inner edge of the vent to the ____.

A. B. C. D. Wrong

outlet weir of the trap (Your Answer) dip inlet

Q.80) The vertical distance between a fixture outlet and the trap weir shall not exceed ____. A. B. C. D. Wrong

18 inches 36 inches 12 inches (Correct Answer) 24 inches (Your Answer)

Q.81) Nonmetallic shower sub-pans or linings may be built up on the job site of not less than ____. A. B. C. D. Correct

three layers of 15 pound felt (Correct Answer) two layers of 15 pound felt four layers of 15 pound felt one layer of 15 pound felt (Your Answer)

Q.82) The developed length of 1-1/2-inch trap arms shall not exceed ____. A. B. C. D. Wrong

2 feet, 8 inches 5 feet 6 feet 3 feet, 6 inches (Your Answer)

Q.83) A water system containing storage water-heating equipment will require a ____. A. B. C. D. Wrong

listed combination temperature and pressure relief valve (Correct Answer) check valve (Your Answer) hot water return line mixing valve

Q.84) An indirect waste pipe 12 feet long requires ____. A. B. C. D. Wrong

a trap only (Correct Answer) a trap and vent (Your Answer) no trap or vent a vent only

Q.85) Water closet tank ballcocks shall be installed with the vacuum breaker critical level at least ____. A. B. C. D. Wrong

1 inch above the flush valve opening (Your Answer) 6 inches above the full opening of the overflow tube 1 inch above the full opening of the overflow tube (Correct Answer) 6 inches above the flush valve opening

Q.86) The required clearance in front of a 3-inch cleanout is ____. A. B. C. D. Correct

6 inches (Your Answer) 18 inches (Correct Answer) 12 inches 24 inches

Q.87) Ferrous gas piping installed underground in exterior locations shall have at least ____. A. B. C. D. Correct

one double swing joint two condensation drip leg 1 foot of earth cover (Your Answer) four 90-degree elbows

Q.88) Minimum clearance of listed appliances to any combustible wall or partition is ____. A. B. C. D. Correct

8 inches 1 inch specified in listing or rating plate and NFPA 211 Standard (Your Answer) 3 inches

Q.89) Leaks in gas piping shall be located by applying ____. A. B. C. D. Correct

fire or acid to the pipe joints potable water to the interior of the piping tubing soapy water to the exterior of the piping (Your Answer) a noncorrosive leak detection fluid

Q.90) A fixture vent pipe increased one pipe size its entire length ____. A. B. C. D. Wrong

may exceed the maximum horizontal length limited by code (Your Answer) will be a better workmanship job will increase the venting efficiency will reduce the cost of installation

Q.91) Vitrified clay building sewer pipe and fittings are ____. A. B. C. D. Correct

unrestricted in use for drain lines unrestricted in use for vent lines (Your Answer) approved for use inside of buildings and aboveground approved for use at least 12 inches belowground (Correct Answer)

Q.92) Sheet metal, constituting a part of any vent connector, shall be at least ____. A. 0.0304 inches (Your Answer) B. 0.0505 inches C. 0.0500 inches

D. 0.0450 inches

Your Report Correct Q.1) When supporting horizontal piping 5-inches in diameter with hangers, a __ inch diameter rod shall be used. A. 1 B. 1/2 (Your Answer) C. 5/8 D. 3/8 Correct Q.2) The diameter of waste and overflow for a bathtub shall not be less tahn ___ A. 1-1/4 inches OD B. 1-3/8 inches OD C. 1-1/2 inches OD (Your Answer) D. 1-1/4 inches OD Wrong Q.3) Any pressure less than that exerted by atmospheric is a(an) __ A. vacuum (Correct Answer) B. negative pressure (Your Answer) C. atmospheric pressure D. positive pressure Wrong Q.4) An unconfined space is a room or space having a volume equal to at least ___ of the aggregate input rating of all the fuel-burning appliances in the space. * A. 10 cu. ft per Btu/hr B. 25 cu. ft per 1,000 Btu/hr (Your Answer) C. 50 cu. ft per 1,000 Btu/hr (Correct Answer) D. 100 cu. ft per Btu/hr Wrong Q.5) With two noted exceptions, all shower compartments and receptors shall be capable of encompassing a ___ diameter circle. A. 24-inch (Your Answer) B. 33-inch C. 30-inch (Correct Answer) D. 36-inch Wrong Q.6) The curb or threshold of a shower compartment may be eliminated ___. A. to comply with accessibility standards (Correct Answer) B. for gang showers

C. in hospitals only (Your Answer) D. not permitted Correct Q.7) Copper tubing installed vertically shall be supported at each storey or at maximum intervals of ___. A. 4 ft B. 10 ft (Your Answer) C. 8 ft D. 6 ft Wrong Q.8) No plumbing system, drainage system, building sewer, private sewage disposal system, or parts thereof, shall be located in ___ any lot other than the lot that is the site of the building served by such facilities (Correct Answer) B. the walls, floors, or underground in any building C. pipe access spaces where accessible for repair D. any garage, or equipment or locker room (Your Answer) Wrong A.

Q.9) Solder and fluxes used in piping system conveying potable water are prohibited when the lead content exceeds.. A. 0.2 of 1 percent (Correct Answer) B. 1 percent (Your Answer) C. 0.5 of 1 percent D. less than 10 percent Wrong Q.10) Trough urinals shall be ___.

A. permissible if constructed of concrete B. prohibited (Correct Answer) C. allowed in bus stations D. required in large associations (Your Answer) Correct Q.11) Wiped joints are permitted with ___.

A. lead (Your Answer) B. steel C. plastic D. cast iron Wrong Q.12) Wall-mounted water closets shall be securely bolted to ___.

A. the wall (Your Answer) B. double two by six studs C. a carrier fitting (Correct Answer) D. a closet bend Correct Q.13) Joints in copper shower pan liners shall be ___. A. burned B. swaged C. sealed with epoxy cement D. soldered or brazed (Your Answer) Wrong Q.14) A joint obtained by joining of metal parts with metallic mixtures of alloys that melt at a temperature up to and including 840 degree F is a ___ * A. brazed joint B. soldered joint (Correct Answer) C. metallic joint D. flared joint (Your Answer) Wrong Q.15) Horizontal hubless pipe shall be braced at not more than 40-foot intervals to prevent ___. A. noise B. leaking C. vertical movement (Your Answer) D. horizontal movement (Correct Answer)

Correct Q.16) All materials, fixtures, or devices used or entering into the construction of plumbing and drainage systems shall ___. * A. conform to approved applicable standards (Your Answer) B. conform to the job specifications C. conform to price job D. conform to materials availability Correct Q.17) Shower pan linings may be constructed with ___ A. 26 B&S gauge copper B. zinc-coated steel C. 15 pounds asphalt felt (Your Answer) D. 3 pounds per square foot lead Wrong Q.18) Joints at the roof, around pipes, shall be made watertight by the use of ___. A. a sealing compound B. flashing material (Correct Answer) C. 15 pound felt D. oakum (Your Answer) Wrong Q.19) The provisions of the code allow an alternate material or method of construction provided it is ___. * A. approved by the architect as an alternate (Your Answer) B. accepted by the owner as analternate C. approved by the Authority Having Jurisdiction as alternate (Correct Answer) D. manufactured by a reputable organization Wrong Q.20) Piping in the ground shall be laid on __-. A. a firm bed (Correct Answer) B. concrete blocks (Your Answer) C. redwood stakes D. common bricks Correct Q.21) Piping, fixtures, or equipment that are installed so that they interfere with normal operation and use of windows or doors shall be ___ A. identified for restricted use B. protected from damage C. approved if acceptable by the owner

D. relocated to avoid interference (Your Answer) Wrong Q.22) The combination of fittings that may be used to make an offset and is considered a vertical pipe are: A. 1-45 degree and 1-45 degree (Correct Answer) B. 1-60 degree and 1-45 degree (Your Answer) C. 1-90 degree and 1-45 degree D. 2-90 degree and 1-45 degree Wrong Q.23) I.P.S. is the abbreviation for ___ A. iron pipe standard (Your Answer) B. iron pipe size (Correct Answer) C. inside pipe standard D. inside pipe size Wrong Q.24) Burred ends of all pipe and tubing shall be ___. A. painted to reduce friction B. reamed to the full bore of the pipe of tube (Correct Answer) C. avoided by use of special cutting tools (Your Answer) D. confined to exposed and readily accesible locations Wrong Q.25) To provide watertight joint in the floor, shower drains and floor drains are required to be ___ A. extra-heavy cast iron B. suitably flanged (Correct Answer) C. coated with asphalt D. set in waterproof cement (Your Answer) Correct Q.26) A mixing valve that senses outlet temperature and compensates for fluctuations in incoming hot or cold water temperature is a ___ * A. combination thermostatic/pressure-balancing valve B. thermostatic (temperature control) valve (Your Answer) C. pressure-balancing valve D. none of the above Wrong Q.27) Mechanical devices may be used to complete backfilling where covering above any piping is at least ___ inches A. 6 (Your Answer)

B. 12 (Correct Answer) C. 30 D. 36 Correct Q.28) Screws or bolts for securing floor_mounted fixtures shall be ___. A. brass (Your Answer) B. aluminum C. galvanized steel D. die-cast zinc Correct Q.29) The organization, office, or individual responsible for enforcing the requirements of a code or standard is the ___ * A. Authority Having Jurisdiction (Your Answer) B. plumbing inspector or department C. building department D. administrative authority Wrong Q.30) All piping fixtures, and equipment shall be adequately supported in accordance with the ___. A. contractor B. code (Correct Answer) C. owner D. engineer (Your Answer) Correct Q.31) That portion of a drainage system that does not drain by gravity into the building sewer is known as a__ A. storm sewer B. building subdrain (Your Answer) C. sewer ejector D. building supply Wrong Q.32) The type of acceptable joints for PEX shall be ___ A. metal insert or metal compression (Correct Answer) B. solvent cemented C. sheilded coupling (Your Answer) D. mechanical Wrong Q.33) The distance between the wall to the center of water closet shall not be less than __-

A. 12" B. 15" (Correct Answer) C. 24" (Your Answer) D. 30" Correct Q.34) Manually controlled flushometer valves shall be used to flush more than A. one urinal (Your Answer) B. two urinals C. three urinals D. four urinals Wrong Q.35) An outlet on a boiler to permit emptying or discharging of sediment is called a(an) ___ * A. boiler blowoff (Your Answer) B. aspirator C. relief valve (Correct Answer) D. atmospheric check valve Correct Q.36) A permanently installed mechanical device, other than an ejector, for removing sewage or liquid waste from a sump is called a sewage pump. A. true (Your Answer) B. false C. maybe Wrong Q.37) Pipe joint material shall be insoluble inwater, nontoxic, and applied ____. A. on male threads only (Correct Answer) B. on pipe threads and inside fittings (Your Answer) C. on inside fitting threads only D. in warm weather only Correct Q.38) gutters in public shower rooms shall be sloped not less than ___ A. 5% B. 10% C. 2% (Your Answer) D. 3% Correct Q.39) The vertical depth of a trap seal is measured from __ A. the outlet of the trap to the bottom of the trap

B. the inlet of the trap to the outlet of the trap C. the crown weir to the top of the dip of the trap (Your Answer) D. the inlet of the trap to the bottom of the trap Wrong Q.40) Static pressure is pressure existing without any flow. A. true (Correct Answer) B. false (Your Answer) C. maybe Wrong Q.41) Roofs, inner courts, vents shafts, light wells, or similar areas having rainwater drains shall discharge to a ___ A. outside of the building or to the gutter (Correct Answer) B. sanitary sewage system (Your Answer) C. private sewage disposal system D. sump with pump discharge into the house drain Correct Q.42) Automatically controlled flushometer valves may be substituted for ___ A. flush tanks (Your Answer) B. flow control C. gate valves D. lever valves Wrong Q.43) A horizontal drain that is sized to provide free movement of air above the flow line of the drain is called a __ A. solvent waste and vent system B. combination waste and vent system (Correct Answer) C. continuous waste system D. durham waste and vent system (Your Answer) Wrong Q.44) A drinking fountain installed outside shall be connected to an approved drainage system. A. true (Correct Answer) B. false (Your Answer) C. maybe Wrong Q.45) The discharge from clinical sinks and conveyed to the building drain is defined as a waste pipe. A. true (Your Answer)

B. false (Correct Answer) C. maybe Wrong Q.46) When brazing, the alloys shall have a melting temperature of at least __ degrees F. A. 800 B. 840 C. 1000 (Correct Answer) D. 1200 (Your Answer) Correct Q.47) It is permitted to drill and tap a vent pipe to connect an indirect waste pipe. A. true B. false (Your Answer) C. maybe Correct Q.48) By code definition, a stack is always __ A. straight B. vertical (Your Answer) C. horizontal D. exposed Wrong Q.49) A device installed in a drainage system to prevent reverse flow is a ___ A. sewage ejector B. check valve C. backflow preventor (Your Answer) D. backflow valve (Correct Answer) Wrong Q.50) A connection to the public sewer, or private sewage disposal system, is required for ___ A. buildings with plumbing fixtures (Correct Answer) B. buildings with emergency drain systems C. buildings with storm drain systems D. buildings with or without plumbing fixtures (Your Answer) Correct Q.51) The building drain from the front building may be extended to the rear building when both buildings are located ___. A. on an ineterior (when driveway cannot be used) (Your Answer) B. 300 ft from the public sewer

C. 200 ft from the public sewer D. on a corner lot Wrong Q.52) Water closet set side by side shall be no closer than ___ A. 15 inches center to center (Your Answer) B. 30 inches center to center (Correct Answer) C. 24 inches center to center D. 18 inches center to center Wrong Q.53) Surfaces to be joined by soldering or brazed shall be cleaned bright by ___. A. mechanical or manual means (Correct Answer) B. a self-cleaning flux C. a corrossive flux (Your Answer) D. sulfuric acid Correct Q.54) Water that is safe for people to drink is referred to by this code as ___ * A. industrial water B. potable water (Your Answer) C. soft water D. hard water Correct Q.55) Drinking fountains shall not be installed in ___. A. public toilet rooms (Your Answer) B. schoolyards C. bars D. restaurants Wrong Q.56) Threaded pipe (I.P.S.) 3/4 inch, except for gas piping, installed horizontally shall be supported at appproximately ___. A. 5-foot intervals B. 10-foot intervals (Correct Answer) C. 12-foot intervals D. 15-foot intervals (Your Answer) Wrong Q.57) A standard that is an extensive compilation of provision covering broad subject matter is the dedfinition for ___ A. listed

B. legal document C. code (Correct Answer) D. standards (Your Answer) Wrong Q.58) The restroom facilities in a private day care center are classified as public use. A. true (Correct Answer) B. false (Your Answer) C. maybe Correct Q.59) A pipe inside a building that conveys storm water from the roof to a strom drain is called a(an) ___ A. conductor (Your Answer) B. building storm drain C. rain leader D. adductor Wrong Q.60) In seismec zone 1 and 2, hubless cast iron piping 5 inches or larger suspended in exposed locations over high traffic areas, and over four feet in length, shall be provided with support on both sides of the coupling A. true (Your Answer) B. false (Correct Answer) C. maybe Wrong Q.61) All design, construction, and workmanship shall be in conformity with ___ A. practices of the contractor B. accepted engineering practices (Correct Answer) C. standard shop procedures D. job plan and specifications (Your Answer) Wrong Q.62) The minimum distance from a side wall or partition to the center of a urinal shall be ___ inches A. 6 B. 12 (Correct Answer) C. 18 D. 24 (Your Answer) Wrong Q.63) Galvanized sheet steel of not less than 16 U.S. gauge may be used to make dishwashing sinks for ___-

A. restaurants (Correct Answer) B. lunch counters (Your Answer) C. commercial buildings D. residential buildings Correct Q.64) The principal artery of the venting system to which branches may be connected is called the ___ A. branch vent B. vertical vent C. vent D. main vent (Your Answer) Wrong Q.65) Tub waste openings in framed construction shall be protected by ___. A. completely covering the opening with plywood collars B. metal collars or screens (Correct Answer) C. filling the annular space with approved fiber material (Your Answer) D. flasings Correct Q.66) A pressure surge-absorbing device operating through the compressibilty of air is called a(an) ___ * A. flushometer valve B. hammer arrestor C. air chamber (Your Answer) D. backflow preventor Correct Q.67) Test gauges shall not have a pressure range more than __ the test pressure. A. equal B. twice (Your Answer) C. 15 psi D. 60 psi Correct Q.68) The overflow pipe from a fixture shall be connected on the ___- * A. house or inlet side of the fixture trap (Your Answer) B. operation side of the fixture trap C. sewer or outlet side of the fixture trap Correct Q.69) Fixture connections between drainage pipes and water closets shall be made with__-

A. expansion joints B. unions C. flanges (Your Answer) D. hot poured compound Correct Q.70) Two-inch horizontal copper tubing drain pipe shall be supported at ___ A. 4 foot intervals B. 6 foot intervals C. 10 foot intervals (Your Answer) D. 12-foot intervals Wrong Q.71) PEX piping may be coupled together with shielded couplings. A. true (Your Answer) B. false (Correct Answer) C. maybe Correct Q.72) PEX is the definition for ___ A. polyethylene B. polybutylene X C. cross-linked polyethylene (Your Answer) D. none of the above Correct Q.73) Sleeves shall be provided to protect all piping through ___ and ___ walls. A. floors, concrete B. wood, concrete C. concrete, masonry (Your Answer) D. none of the above Wrong Q.74) Disposal of sewage, or other liquid waste, shall be by means of __ A. the drainage system of the building or premises (Correct Answer) B. sewage retaining tanks (Your Answer) C. subsurface leaching pits D. chemical toilets Wrong Q.75) The distance between the center of urinal shall not be less than ___ A. 12" B. 15"

C. 24" (Correct Answer) D. 30" (Your Answer) Wrong Q.76) A document, the main text of which contains only mandatory provisions using the word "shall" to indicate requirements, is best described as a __ * A. code (Your Answer) B. standard (Correct Answer) C. law D. legal document Correct Q.77) gutters in public shower rooms shall be sloped not less than ___ A. 2% (Your Answer) B. 3% C. 5% D. 10% Wrong Q.78) All trenches deeper than the footing of any building or structure and paralleling the same shall be at least ___. A. 5-foot intervals B. every other story (Your Answer) C. each floor not to exceed 15 ft (Correct Answer) D. 10-foot intervals Wrong Q.79) A device and system of piping that maintains a water seal in a remote trap is called a trap primer. A. true (Correct Answer) B. false (Your Answer) C. maybe Correct Q.80) When installing ___, the Authority Having Jurisdiction shall require evidence of the competency of the installers. A. potable water piping B. fuel-gas piping C. medical gas piping (Your Answer) D. plumbing appurtenance Wrong Q.81) All pipe, pipe fittings, tyraps, fixtures, materials, and devices used in plumbing system shall be ___

A. listed or labaled by a listing agency B. approved by the Authority Having Jurisdiction (Your Answer) C. free from defects D. all of the above (Correct Answer) Wrong Q.82) No dry or chemical closet (toilet) shall be installed in any building used for human habitation unless first approved by the ___ A. owner B. plumbing inspector (Your Answer) C. city clerk D. health officer (Correct Answer) CHO, MHO Correct Q.83) A pipe that makes an angle of not more than 45 degree with the vertical is considered ___ A. vertical (Your Answer) B. horizontal C. crooked pipe D. diagonal pipe Wrong Q.84) The minimum wall thickness for threaded plastic pipe shall be ___

*

A. Schedule 40 B. Schedule 80 (Correct Answer) C. 1/8 inch (Your Answer) D. 1/16 inch Wrong Q.85) Unsanitary and insanitary share the same meaning A. true (Correct Answer) B. false (Your Answer) C. maybe Correct Q.86) A device integrated within an ai accumalator vessel that is designed to discharge a predetermined quantity of water to fixtures for flushing purposes is a (an) __ * A. surge tank B. day tank C. expansion tank D. flushometer tank (Your Answer) Wrong Q.87) Fixtures having concealed slip-joint connections shall be provided with _--

A. a utility space or access panel (Correct Answer) B. a ladder and a light fixture C. red brass fittings D. rubber gasket (Your Answer) Correct Q.88) The joint of a wall-hung lavatory, where it is in contact with the wall, shall be ___ A. smooth B. painted C. concealed D. watertight (Your Answer) Wrong Q.89) Every water supply to a urinal shall be protected by an approved __A. relief valve (Your Answer) B. vacuum breaker (Correct Answer) C. metering valve D. automatic switch Correct Q.90) Tanks flushing more than one urinal shall be ___ A. *automatic in operation (Your Answer) B. acid-resistant C. enamel D. manual in operation Correct Q.91) Closet bends or stubs shall be cut off so as to present a smooth surface, even with the ___. A. top of the rough floor B. top of the closet ring (Your Answer) C. top of the finish floor D. bottom of the closet ring Correct Q.92) The length along the centerline of the pipe and fittings is the ___ A. diameter length B. circumferential length C. developed length (Your Answer) D. diagonal length Correct Q.93) A combination building sewer is (a)___

combination of all sewer and drainage piping from inside and outside of the building B. building sewer that conveys industrial waste and domestic sewage C. building drains that convey waste and storm water D. building sewer that conveys both sewage and storm water (Your Answer) Wrong A.

Q.94) When a backflow prevention device does not bear a critical level marking, the part of the device that shall constitute the critical level is the ___ * A. top B. center C. bottom (Correct Answer) D. outlet invert (Your Answer) Unanswered Q.95) Voids around piping passing through concrete floors on the ground shall be ___ A. flanged B. protected C. sealed (Correct Answer) D. packed Correct Q.96) The lowest portion of the inside of a horizontal pipe is called the ___ A. invert mass B. invert (Your Answer) C. flat vent D. bottom Wrong Q.97) Drain pipes subject to condensation over food storage in food-handling establishment shall be ___. A. installed with a spill pan B. thermally insulated (Correct Answer) C. remouled out of the area (Your Answer) D. tested with 5 psi of air

Your Report Correct Q.1) Which of the following is NOT a basic component to a plumbing system? A. The drainage and vent system B. Water service pipe and distributing pipes C. Pollution Control (Your Answer) D. Plumbing fixtures Correct Q.2) What do you call the installation of all pipes in the plumbing system that is in partitions and under floors?> A. Tempering B. Roughing-in (Your Answer) C. Concealed plumbing D. Fixturing Correct Q.3) What will be the basis in the design of waer piping sytem in localities where the water pressure is fluctuating all throughout the day? A. Time of the day when the maximum pressure is available B. Number of households in the area using water C. Minimum pressure available (Your Answer) D. Maximum pressure available Correct Q.4) What do you call a hemp or old hemp rope soaked in oil or tar to make it waterproof? A. Sisal B. Manila C. Abaca D. Oakum (Your Answer) Wrong Q.5) Through what means must waste of food handling equipment discharge? A. Vertical gap B. Grease interceptor (Your Answer) C. Indirect Waste pipe (Correct Answer) D. Direct connection Correct Q.6) What is a group vent pipe? A. Circuit vent (Your Answer)

B. Drain C. Continuous vent D. Cross connection Correct Q.7) When was NAMPAP registered with the Securities and Exchage Commission? A. 1925 B. 1942 C. 1937 D. 1935 (Your Answer) Wrong Q.8) A horizntal drain that is sized to provide free movement of air above the flow line of the drain is called a ___ A. continuous waste system (Your Answer) B. durham waste and vent system C. combination waste and vent system (Correct Answer) D. solvent waste and vent system Correct Q.9) What should be made of connections between a potable water supply and an automatic fire sprinkling machine? A. With vacuum breaker B. With relief valves C. With check valve (Your Answer) D. With valve regulator Correct Q.10) What type of concealed connections on fixtures shall be provided with access panel or utility at least 0.3m in its least dimension for easy inspection and repair? A. Hubless B. Flanged C. Slip joint (Your Answer) D. Ball and socket Wrong Q.11) Fixture connections that require the removal of an access panel for servicing are considered ____. A. accessible (Correct Answer) B. readily accessible (Your Answer) C. not accessible D. exposed Correct

Q.12) What is the minimum elapsed time required that the pressurized water be kept in the pipe system for the water test? A. 15 min (Your Answer) B. 10 min C. 30 min D. 1 hour Correct Q.13) What is that portion of rainfall or other precipitation which runs off over the surface of the ground called? A. Surface water (Your Answer) B. Rain water C. Run-off water D. Ground water Correct Q.14) How many pipes that discharge into a drainage system but which are not connected directly to the drainage system clasiffied? A. Complex wastes B. Indirect wastes (Your Answer) C. Special wastes D. Direct wastes Wrong Q.15) Which of the following types of work required a plumbing permit? A. The replacement of a faulty gate valve B. The relpacement of an electric water heater (Correct Answer) C. The clearance of the drain stoppage (Your Answer) D. The replacement of the faucet stem Wrong Q.16) What is a liquid waste that contains animal or vegetable matter in suspension or solution? A. Sewer B. Sewage (Correct Answer) C. Domestic waste (Your Answer) D. Culinary waste Correct Q.17) What tank is integral with water closet, urinal, or similar fixtures for flushing or removing excrements in the fixture? A. Flush (Your Answer)

B. Septic C. Drain D. Cistern Wrong Q.18) What must the interceptors used in bottling establishment be capable of seperating from the other solids before discharging he waste into the drainage system? A. Oil (Your Answer) B. Flammable materials C. Bottled fluids D. Broken glass or other solids (Correct Answer) Wrong Q.19) What must be fitted on a fixture that is equipped with threads for a garden hose? A. Check valve B. Backflow preventer C. Air gap (Your Answer) D. Vacuum breaker (Correct Answer) Correct Q.20) What do you call the downward fall of a pipe? A. Grade (Your Answer) B. Inclined C. Slope D. Slant Wrong Q.21) What are intended to be protected by vents? A. Fixture outlets (Your Answer) B. Drains C. Traps D. Trap seals (Correct Answer) Correct Q.22) Which of the following also serves as drains? A. Relief vents B. Common vents C. Wet vents (Your Answer) D. Dry vents Wrong Q.23) What tube is made of plastic material and colored black whose cross-sectional shape is normally oval and is denoted by its outside diameter and is normally

used as water service connection from the main to the meter. A. ABS pipe (Your Answer) B. Polyethylene pipe C. UPVC pipe D. Polybutylene pipe (Correct Answer) Correct Q.24) What is the minimum height of raised letters on an iron or bronze sign that will read "Connection to Dry Standpipe" A. 25 mm (Your Answer) B. 3/4 inch C. 20 mm D. 30mm Correct Q.25) Unless prohited by structural conditions, what is the reference of each vertical vent pipes before offsetting horizontally to join the stack vent or vent stack? A. Invert of trap B. Highest flood level rim of fixture (Your Answer) C. Water level inside the trap D. Air gap of fixture Correct Q.26) Which of the following types of traps allowed? A. Traps which depend upon moving parts to maintain a seal B. P-traps (Your Answer) C. Crown-vented trap D. Bell traps Correct Q.27) What do you call a drainage piping that extends from the trap of a fixture to appoint connection with another drain pipe? A. Horizontal stack B. Branch supply C. Trap Arm (Your Answer) D. Fixture drain Wrong Q.28) Who was the President of the Republic of the Philippines who signed the "Plumbing Law of the Philippines"? A. Joseph Estrada B. Diosdado Macapagal C. Ramon Magsaysay (Correct Answer) D. Ferdinand Marcos (Your Answer)

Correct Q.29) What pipe conveys potable water from a building supply to a plumbing fixture? A. Water Distribution (Your Answer) B. Water riser C. Water line D. Water stack Correct Q.30) What do you call the pipe or tubing that connects the oultlet of a plumbing fixture to the trap? A. Outflow B. Tailpiece (Your Answer) C. Head Tubing D. Connector Correct Q.31) What do you call a combination of elbows or bends which brings one section of pipe out of line but into a line parallel with the other section of the pipe? A. Offset (Your Answer) B. Crown vent C. Drainage turn D. Picth Wrong Q.32) What is the standard working pressure for a water heater? A. 140 psi B. 125 psi (Correct Answer) C. 100 psi D. 75 psi (Your Answer) Correct Q.33) What do you call a water supply pipe connecting the fixtures with the fixture branch? A. Corporation B. Service C. Fixture supply (Your Answer) D. Special Wrong Q.34) What delivers water under pressure? A. Ejector B. Sump pump C. Pressure controller (Your Answer)

D. Centrifugal pump (Correct Answer) Correct Q.35) What is the receptacle wherein liquids are retained for a sufficient period of time to allow settleable materials to deposit? A. Catch basin (Your Answer) B. Rainwater tank C. Cistern tank D. Weir Wrong Q.36) What device is used to prevent backflow into a potable water supply? A. Backflow valve (Your Answer) drainage B. Backwater valve C. Backwater preventer D. Backflow preventer (Correct Answer) Wrong Q.37) What screened vent shall be used to vent the covers of gravity storage tank of potable water supply? A. Return-bend pipe (Correct Answer) B. Upright pipe (Your Answer) C. Horizontal nipple D. Circuit vent Wrong Q.38) What is represented by a solid line broken with a single dot or dash in piping diagrams? A. Cold water (Correct Answer) B. Hot water C. Vent pipe D. Drainage pipe (Your Answer) Correct Q.39) What interior pipes are used to convey storm water from a roof drain to appoint of disposal? A. Leaders B. Conductors (Your Answer) C. Wet stacks D. Stacks Correct Q.40) Connections between drain and floor outlet plumbing fixtures must be made

with which of the following? A. Mechanical joints B. Electromeric seal C. Schedule-40 joints D. Floor flanges (Your Answer) Correct Q.41) What is a recession in a wall for holding pipes and conduits passing from floor to floor? A. Vent B. Court C. Chase (Your Answer) D. Yard Correct Q.42) In water supply and distribution, what type of fillway valve should be used to control or more openings? A. Ball valve B. Butterfly valve C. Globe valve D. Gate valve (Your Answer) Correct Q.43) What system describes soil or waste system where all pipings are of threaded pipe, tubing or other such rigid construction using recessed drainage fittings to correspond to the types of piping? A. Durham (Your Answer) B. Schultz C. Smith D. Drake Wrong Q.44) After how many days shall a plumbing permit expire and become null and void if the plumbing works authorized therein have not been started? A. 365 (Your Answer) B. 60 C. 30 D. 120 (Correct Answer) ? Wrong Q.45) What is the minimum number of water closet for 16 to 35 permanent female emplyees in assembly places such as the theaters, auditoruims and convention halls?

A. 2 B. 4 (Your Answer) C. 5 D. 3 (Correct Answer) Wrong Q.46) How many threads per inch has a cleanout having a size of 76 mm had? A. 8 (Correct Answer) B. 10 C. 5 D. 6 (Your Answer) Wrong Q.47) How do you call an auxillary vent which provides additional circulation of air in or between a drainage system classified? A. Common vent B. Relief vent (Correct Answer) C. Island vent D. Branch vent (Your Answer) Wrong Q.48) what device is present in a water heater that allows the emptying or discharge of excessive pressure A. Thermostat B. Relief valve (Correct Answer) C. Aquastat (Your Answer) D. Boiler blowoff Correct Q.49) Valve up to and including 51 mm in size should be made of what materials? A. Galvanized iron B. Cast iron C. Brass (Your Answer) D. Copper Wrong Q.50) What type of valve in a water system combines to protect agaainst excessive temperature and pressure build-ups? A. Temperature and pressure relief valve (Correct Answer) B. Stop valve C. Tempering valve D. Temperature relief valve (Your Answer) Correct Q.51) Grease interceptors must be equipped with devices to control the rate of which

of the following? A. Heat Transference B. Air flow C. Waste flow D. Water flow (Your Answer) Wrong Q.52) What is the ideal inside diameter of cesspools? A. 10 ft B. 3 meters C. Not more than 5 meters (Your Answer) D. Not more than 6 ft (Correct Answer) Wrong Q.53) For a discharge capacity in the excreta drainage system of 1.0 to 1.89 per second, what is its assigned equivalent fixture unit when there is an intermittent flow in the system? A. 3 B. 2 C. 4 (Correct Answer) D. 6 (Your Answer) Correct Q.54) What type of valve that will be used for all the outlets in a stand pipe A. Ball B. Check C. Gate (Your Answer) D. Globe Wrong Q.55) The trap of a kitchen sink may NOT accept the waste of which of the following? A. Clothes wahser (Correct Answer) B. Garbage disposer C. Diswasher (Your Answer) D. Continuous waste Correct Q.56) what sewage includes the wastes from metal and chemical plants, oil refineries, laudries. diary plants and breweries? A. Residential B. Commercial C. Industrial (Your Answer)

D. Institutional Correct Q.57) What part of the trap of trapped fixture being served, must individual vents be connected? A. Fixture drain (Your Answer) B. Top C. Bottom D. Fixture branch Correct Q.58) From where can liquid waste be disposed off directly into the ground? A. chemical laboratory B. church sacaruim (Your Answer) C. toilet D. restaurant sink Wrong Q.59) How many equvalent water supply fixture unit has the flush tank type of water closet that is for private use? A. 4 B. 2 C. 3 (Correct Answer) D. 5 (Your Answer) Wrong Q.60) What feature in water supply is NOT advisable to plumbing fixtures, devices and opportunities? A. Bacterial quality (Correct Answer) B. Adequate pressure C. Sufficient volume D. Without undue noise (Your Answer) Wrong Q.61) What is the least diameter (in mm) of building water service pipe that is allowed by the plumbing Code? A. 19 (Correct Answer) B. 12.5 (Your Answer) C. 10 D. 25 Correct Q.62) What type of surface must plumbing fixtures should NOT have?

A. Concealed fouling surface (Your Answer) B. Smooth, impervous purposes C. China surfaces D. Stainless steel surfaces Wrong Q.63) What do you call the vertical vent pipe installed primarily to provide circulation of air to and from any part of the drainage system? A. Common vent B. Relief vent C. Vent Stack (Correct Answer) D. Stack vent (Your Answer) Correct Q.64) What pipe carries potable water from the water meter or other source of water supply to a building or other point of use or distribution on the lot A. Building supply (Your Answer) B. Liquifier C. Water distributor D. Water regular Correct Q.65) What pressure exist without any flow motion? A. Static (Your Answer) B. Stagnate C. Adiabatic D. Pore Water Correct Q.66) What is the term used which implies siphonage in piping system? A. Deoxygenation B. Carbonation C. Vacuum (Your Answer) D. Flushing Correct Q.67) When a trench is backfilled, at what intervals must the fill material be compacted? A. Every 4 inches B. Every 12 inches C. Every 6 inches (Your Answer) D. Every 8 inches Wrong Q.68) What type of sewage has not recieved any treatment?

A. Crude (Correct Answer) B. Oxidized (Your Answer) C. Clarified D. Carbonized Correct Q.69) A room equipped with a shower or bathtub is a ___. A. toilet room B. bathroom (Your Answer) C. shower room D. washroom Wrong Q.70) What is the process whereby steel and iron pipes rust? A. Decay B. Deoxidation (Your Answer) C. Ferrule D. Tuberculation (Correct Answer) Wrong Q.71) If the potable water supply is being connected to a non-potable water source, with what reduced pressure device should connections be made? A. Back flow preventer (Correct Answer) B. Air gap (Your Answer) C. Vacuum breaker D. Double check valves Correct Q.72) Which of the following vents does NOT carry liquid or water-borne wastes? A. Dual B. Dry (Your Answer) C. Unit D. Wet Correct Q.73) What do you call an approved tank or pit which recieves sewage or wastewater below the normal grade and is emtied by mechanical meands? A. Lateral B. Sump (Your Answer) C. Damp D. Dumping Wrong Q.74) Which of the follwing is a common form of protection from corrosion for pipes

passing through concrete? A. Protective concreting B. Protective coating (Your Answer) C. Protective handling D. Protective wrapping (Correct Answer) Wrong Q.75) what do you call the main water pipe which delivers potable water to a building. A. Water connector B. Water service (Correct Answer) C. Water supply (Your Answer) D. Water distributor Wrong Q.76) Which of the follwing is NOT allowed in the construction of a storm water drainage system? A. Schedule-40 plastic fittings B. Cast-iron fittings (Your Answer) C. Drainage fittings that are commonly used for sanitary drainage D. Fittings that retard the flow of storm water (Correct Answer) Correct Q.77) What do you call the water that stands in or passes through the ground? A. Artesian B. Surface C. Deep well D. Ground (Your Answer) Correct Q.78) Which of the following does NOT constitute a clean out? A. Removable fixture trap B. Removable plug or cap C. Water faucet (Your Answer) D. Water closet Correct Q.79) What is the combination of elbows or bends in aline of piping, which bring one section of the pipe out of line parallel with the original section? A. Sanitary piping B. Piping system C. Offset (Your Answer) D. Circuit piping Correct

Q.80) What device is often used to connect an appliance to a gas source? A. Flexible connector (Your Answer) B. Iron pipes C. PVC pipe D. Gas hose Correct Q.81) What is the process by which suspended matter in sewage subsidies and is deposited by gravity? A. Clarification B. Filtration C. Dilution D. Sedimentation (Your Answer) Correct Q.82) What valve of faucet closes automatically when released manually? A. Timed shut-off B. Slope valve C. Supply valve D. Quick closing valve (Your Answer) Wrong Q.83) What do you call a waste arrangement that connects multiple compartments of a set of fixtures, such as double-bowl kitchen sink, to a single trap? A. A series waste B. An island waste C. A continuous waste (Correct Answer) D. A collecticve waste (Your Answer) Correct Q.84) What building drains conveys storm water but not sewage? A. Combined drain B. Storm drain (Your Answer) C. Sanitary drain D. Surface drain Correct Q.85) What portion of an underground drainage system CANNOT drain by gravity into the building sewer? A. Building subdrain (Your Answer) B. Building drain C. Building supply D. Building sewer

Correct Q.86) What is represented by a solid line broken with two dots or dashes in piping diagrams? A. Drainage pipe B. Vent pipe C. Cold water D. How water (Your Answer) Correct Q.87) The length along the centerline of the pipe and fittings is the ___ A. diagonal length B. diameter length C. circumferential length D. developed length (Your Answer) Correct Q.88) What do you call a pipe with a adjacent reverse bends and shaped like the letter "S"? A. Double bend (Your Answer) B. Double hub C. Increaser D. Sanitary cross Correct Q.89) What type of water closet is installed in such a way that it does not touch the floor? A. Hanger B. Wall-hung (Your Answer) C. Carrier D. Handy Correct Q.90) If ever it is impractical to install the horizontal drainage piping following the required minimum slope due to some reasonable constraints, what is the least required slope that is allowed? A. 0.5% B. 1.5% C. 2.0% D. 1.0% (Your Answer) Correct Q.91) What does NAMPAP mean A. National Master Plumbing Association of the Philippines

B. National Agency of Master Plumbing in the Philippines C. National Master Plumbers Association of the Philippines (Your Answer) D. National Association of Masters Plumber of the Philippines Wrong Q.92) What valve is similar to a compression cock but has a screw outside for a connection of water hose? A. Tap B. Key cock (Your Answer) C. Hose bibb (Correct Answer) D. Faucet Wrong Q.93) what is the minimum allowed uniform gauge pressure in the piping system if an air test shall be made? A. 34.5 kPa (Correct Answer) B. 20 psi C. 17.7 psi (Your Answer) D. 120 psi Wrong Q.94) which of the follwong is NOT an element in the computation of the size of grease interceptors? A. B. Diameter of inlet pipe (Correct Answer) C. Waste flow rate D. Storage factor (Your Answer) Wrong Q.95) Which of the following is required in the installation of a storm drainage system? A. 90 degrees bends B. 45 degrees bends C. Blind plugs (Your Answer) D. Cleanouts (Correct Answer) Correct Q.96) Which of the following commonly carries both storm water or sewage? A. Mixed drain B. Subsoil drain C. Combined sewer (Your Answer) D. Sanitary sewer Correct

Q.97) Which of the following is an impairment of the quality of potable water which creates a hazard to public health through poisoning or the spread of disease? A. Imbalance B. Risk dange C. Backflow D. Contamination r (Your Answer) Correct Q.98) What do you call a receptacle installed to collect and drain store water from an open area? A. Combination Sewer B. Split drain C. Area drain (Your Answer) D. Floor drain Correct Q.99) What do you call the vertical distance between the crown weir and the top of the dip of a trap? A. Airbreak B. Airgap C. Trap seal (Your Answer) D. Critical level Correct Q.100) A device integrated within an air accumulator vessel that is desgned to discharge a predetermined quantity of water to fixtures for flushing purposes is a(an) ___A. expansion tank B. surge tank C. flushometer tank (Your Answer) D. day tank Correct Q.101) Which is NOT a plastic pipe? A. Polybutylene B. Polyvinyl chloride C. Polyethylene D. Black steel (Your Answer) Correct Q.102) A vertical vent that is a continuation of the drain to which it connects is a ___ A. circuit vent B. relief vent C. continuous vent (Your Answer)

D. branch vent Correct Q.103) That part of the lowest piping of a drainage system that recieves the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to a point 2 ft. outside the building wall is a ___ A. building drain (Your Answer) B. building sewer C. waste pipe D. soil stack Correct Q.104) If there are five or more branch intervals located above a horizontal offset of a drainage stack, what must be made of the offsets? A. No more than 22 1/2 degrees B. Eliminated C. No more than 22 1/2 degrees D. Vented (Your Answer) Unanswered Q.105) When plastic pipe is joined with cast-iron pipe, which of the following types of joints is acceptable? A. Caulked B. Solvent weld C. Threaded D. Mechanical (Correct Answer) Correct Q.106) Which of the following does NOT belong to sump pump system? A. Sump pit B. Sump pump C. Discharge piping D. Hinged covers (Your Answer) Correct Q.107) What is the allowable distance between the trap arm and the vent if the fixture has a trap arm diameter of 32mm? A. 1.52m B. 0.76 m (Your Answer) C. 0.51m D. 1.07m

Your Report Correct Q.1) What is the minimum dimension for a turning space in a water closet stall intended for disabled persons? A. 2.00 m B. 1.20 m C. 1.00 m D. 1.50 m (Your Answer) Correct Q.2) Who is empowered to administer the provision of Rep. Act 1378? A. Office of the President B. Congress of the Philippines C. The Board of Examiners for Master Plumbers (Your Answer) D. Professional Regulation Commision Wrong Q.3) What is the PRC Resolution Number is issued by the Board of Master Plumbing for the adoption and promulgation of the Revised National Plumbing Code of the Philippines? A. Res. No. 2 (Your Answer) B. Res. No. 1378 C. Res. No. 4 (Correct Answer) D. Res. No. 962 Correct Q.4) A kind of cleanout plugs that will be installed in case where raised heads may cause hazards to passing personnel or vehicles. A. depressed B. countersunk (Your Answer) C. embedded D. recessed Correct Q.5) The following are grounds for non-issuance of the certificate of registration by the Board of Master Plumbers EXCEPT A. convicted by court for any criminal offense B. of unsound mind C. guilty of immoral or dishonorable conduct D. failure to pay the required fees (Your Answer) Correct Q.6) Who shall set the criteria for the quality of drinking water from meteoric, surface or underground sources?

A. National Water Resources Board B. Department of Health C. National Standards for Drinking Water (Your Answer) D. Department of Environment and Natural Resources Wrong Q.7) If a septic tank has a compartment that exceed 3.7 m in length, what should be the additional requirement? A. An additional manhole (Correct Answer) B. Increase the size of the leaching chamber C. Increase the number of compartments (Your Answer) D. Baffle wall is added Wrong Q.8) Where the number of water closets in a floor level exceeds 20, how many of these shall be provided to the disabled persons? A. 1 B. 2 (Correct Answer) C. 3 D. 4 (Your Answer) Correct Q.9) What kind of concealed connections on fixtures that it is required to provide an access panel or utility at least 0.30 meter in its least dimension for easy inspection and repair? A. slip joint (Your Answer) B. ball and socket C. hubless D. flanged Correct Q.10) Which of the following could be omitted if the trap arm changes direction that does not exceed 90 degrees? A. Wye B. Cleanout (Your Answer) C. Long sweep D. Combination of 1/8 bend and wye Correct Q.11) According to the Building Code of the Philippines what is the range in height above grade should the Siamese fire department conncetion be installed? A. 30 cm to 1.2 m (Your Answer) B. 60 cm to 1.5 m C. 80 cm to 1.8 m

D. 50 cm to 1.0 m Wrong Q.12) What installation standard is followed in joining plastic pipe and fittings by solvent cement? A. ISO (Your Answer) B. ANSI C. IAPMO (Correct Answer) D. ASHRAE Wrong Q.13) The appropriate sealant that will be used to cover void spaces between pipes and sleeves through concrete floors in the ground A. bitumen (Correct Answer) B. epoxy (Your Answer) C. grease D. putty Wrong Q.14) In accordance to the Building Code, what must be provided in addition to septic tanks by building located in areas where there is no sanitary sewerage system whenever they will dispose their waste? A. Baffle plate B. Subsurface absorption filed (Correct Answer) C. Imhoff tank D. Settling chamber (Your Answer) Correct Q.15) Under the Accessibilty Law, what is the minimum area of water closet stalls? A. 1.7 x 1.8 meters (Your Answer) B. 2.0 x 2.0 meters C. 1.5 x 1.8 meters D. 1.2 x 2.0 meters Correct Q.16) When shall the installation of plumbing equipment to supply building or structures from existing water supply system only be allowed to? A. If the water demand is inadequate B. Whenever the water supply is scantity availbale C. When there is always water in the main (Your Answer) D. When water is not available in the vicinity Wrong Q.17) Under what law did plumbing became a duly recognized profession by the Philppine government?

A. Nat'l Plumbing Code of the Phil of 1959 B. Tydings McDuffie Act of 1905 C. Jones Law of 1907 (Correct Answer) D. Republic Act 1378 (Your Answer) Wrong Q.18) Who is authorized to issue rules and regulations to carry into effect the objectives of Rep. Act 1378? A. Board of Master Plumbers (Your Answer) B. Congress of the Philippines C. President of the Philippines (Correct Answer) D. Professional Regulation Commision Correct Q.19) What should be done whenever a partition contains some piping and runs parallel to the floor joist underneath? A. Notching should be introduced into the joist B. Adjust the joist to make it perpendicular with the direction of pipe C. Space the joist wider to accommodate the pipe D. Double the joist (Your Answer) Correct Q.20) What is the minimum height of raised letters on an iron or bronze sign that will read "CONNECTION TO DRY STANDPIPE"? A. 20mm B. 1/4inch C. 25mm (Your Answer) D. 30mm Correct Q.21) What is the minimum pipe size of the standpipe if the highest outlet is located more than 23 meters above the Fire Service connection? A. 3 inches B. 6 inches (Your Answer) C. 5 inches D. 4 inches Correct Q.22) The Building Code stated that all dry standpipe outlets shall be equipped with valves having substantial chains. What kind of valve is this? A. Check valve B. Globe valve C. Gate valve (Your Answer) D. Ball valve

Wrong Q.23) What is the maximum distance as where supports of vertical cast iron soil pipes are made? A. every 3.0 m (Your Answer) B. every meter C. every storey (Correct Answer) D. every joint Correct Q.24) Which of the following plumbing code in USA does the National Plumbing Code of the Philippines was being patterned for? A. Standard Plumbing Code B. ASPE Code C. Uniform Plumbing Code (Your Answer) D. International Plumbing Code Correct Q.25) In the water test of the entire plumbing system all openings should be tightly closed except at A. producing cleanouts B. highest opening (Your Answer) C. stack vent D. bleeders Correct Q.26) A stack, as defined in the code, is ___ A. the main vent B. any vertical vent C. the horizontal main of soil, waste, or vent stack the vertical main of soil, waste, or vent piping that extends one or more D. stories (Your Answer) Correct Q.27) What is the minimum diameter of vent pipe is allowed in the revised Code? A. 1 inch B. 1 1/4 inch (Your Answer) C. 2 inch D. 1 1/2 inch Wrong Q.28) Except for plastic piping system, hot and cold water piping may be tested wtih ___ A. 50 psi of the working pressure of the water in the system for at least 15

minutes (Correct Answer) B. 100 psi air for at least 10 minutes C. 35 psi air for at least 15 minutes (Your Answer) D. 40 psi air or 150 psi water for 10 minutes Wrong Q.29) If the discharge of a fixture or drain may contain solids or semisolids heavier than water that would be harmful to the drainage system or cause stopaage within the system, where the discharge must pass first? A. Sand interceptor (Correct Answer) B. Screen wire mesh (Your Answer) C. Wooden baffle Correct Q.30) A plumbing permit shall expire and become null and void if the plumbing work authorized therein if not started for how many days? A. 30 days B. 45 days C. 100 days D. 365 days (Your Answer) Wrong Q.31) What institution standart used as a reference for joining pipes? A. ASSE B. ASPE (Your Answer) C. ANSI D. IAPMO (Correct Answer) Wrong Q.32) Within how many days upon the approval of Rep. Act No. 1378 does it require to have a Board Examiners for Master Plumbers formed? A. Thirty days (Correct Answer) B. Fortyfive days C. Sixty days D. Fifteen days (Your Answer) Correct Q.33) In what year did NAMPAP was incorporated as a professional organization? A. 1935 (Your Answer) B. 1956 C. 1946 D. 1968 Correct Q.34) PD No. 1185 is another law that Master Plumbers used as their guide in the

practice of the plumbing profession.What is PD No. 1185? A. Accessibilty Law B. Fire Code of the Philippines (Your Answer) C. Water Code of the Philippines D. Code of Sanitation Wrong Q.35) Which of the following is not considered as suds-producing fixture? A. kitchen sink B. bath tub C. washing machine (Your Answer) D. bidet (Correct Answer) Wrong Q.36) How does a pneumatic tank be designed to supply adequate water pressure in all floors of a building that will be in accordance with the Building Code? A. Twice the maximum total dynamic pressure required (Correct Answer) B. Equal to the total water supply fixture units C. Twice the total demand per capita (Your Answer) D. Equal to the total dynamic head and minus all the head losses Correct Q.37) When can a vertical piping be considered to be wet vented? A. between openings of vent pipes B. between any two consecutive inlet levels (Your Answer) C. on stack vent D. when serving two water closets at different levels Wrong Q.38) In sizing the grease interceptors, four elements are being used. Two of these elements are number of meals per peak hour and the waste flow rate. Whta are the other two elemets? A. Slope and retention time (Your Answer) B. Storage factor and time of concentration C. Retention time and storage factor (Correct Answer) D. Percolation rate and time of concentration Wrong Q.39)

Of the four board subjects given for Master Plumbers examination, which of this subject was originally split into two subject? A. B. C. D.

Practical Problems (Correct Answer) Design And Installations (Your Answer) Plumbing Code Plumbing Arithmetic

Unanswered Q.40) How many units do the controversial Article 3.2.2.2 of PD 1096 otherwise known as the National Building Code limits the practice of Master Plumber? A. 20 (Correct Answer) B. 10 C. 5 D. 50 Correct Q.41) Building sewers shall be tested by completely filling the sewer with water from the ___ A. lowest to the highest point (Your Answer) B. lowest to at least ground level C. lowest to at least a 10-foot head D. lowest to at least a 5-foot head Wrong Q.42) Aside from galvanized steel, what is the other material for dry standpipe that the Building Code allows? A. PVC pipe B. Wrought iron (Correct Answer) C. PE pipe D. Brass (Your Answer) Wrong Q.43) For new, additional or altered plumbing installation not exceeding 20 units, the Building Code stated that a Licensed Master Plumber could sign and affix his seal on the follwing engineering documents except A. Plumbing plan and layout B. Design analysis and plans of the original installation (Correct Answer) C. Isometric drawing (Your Answer) D. Guide specifications and bill of materials Correct Q.44) Unless prohibited by structural conditions, what is the reference of each vertical vent pipes before offsetting horizontally to join the stack vent or vent stack? A. invert of trap B. air gap of fixture C. water level inside the trap D. highest flood level rim of fixture (Your Answer) Correct Q.45) What is the masimum length of the fire hose that shall be equipped on wet standpipes?

A. 12 meters B. 23 meters (Your Answer) C. 17 meters D. 25 meters Correct Q.46) What shape of signage is shown for mens showroom? A. SQUARE B. CIRCLE C. TRIANGLE (Your Answer) D. RECTANGLE Wrong Q.47) Who was awarded as the most outstanding Registered Master Plumber for the Year 2011? A. Dave Vela (Correct Answer) B. Alberto Azarcon C. Alberto Cabael (Your Answer) D. Thelma Cardente Correct Q.48) What is the minimum horizontal clear dsitance from the septic tank to the property line of the adjoining private property? A. 1.0 m B. 1.2 m C. 1.5 m (Your Answer) D. 1.8 m Wrong Q.49) What is the minimum total net inlet area of roof deck drains on roof deck used as sun decks and parking decks? A. equal to the area of outlet pipe (Your Answer) B. equal to 4 times the area of outlet pipe C. equal to 2 times the area of outlet pipe (Correct Answer) D. equal to 1 1/2 times the area of outlet pipe Wrong Q.50) The cover of gravity tanks shall be vented using a screened A. return bend pipe (Correct Answer) B. upright pipe C. horizontal nipple D. all of these (Your Answer) Correct

Q.51) A type of drainage and venting system with universal branch line that is prohibited A. single (Your Answer) B. dual C. dependent D. alternate Correct Q.52) Except on what fixture does the vent pipe opening from the soil or waste pipe must not be below the weir of the trap? A. lavatory B. kitchen sink C. bath tub D. water closet (Your Answer) Wrong Q.53) A fitting for lead-caulked joint that is prohibited when in vertical position A. single hub B. double hub (Correct Answer) C. double tapped tee D. all of these (Your Answer) Wrong Q.54) What is the shape for the signage for women's comfort room in order to aid visually impaired women readilty determine whether a washroom is for men or women? A. CIRCLE (Correct Answer) B. RECTANGLE C. TRIANGLE (Your Answer) D. SQUARE Correct Q.55) Which of the following is a prohibited fixture inside a public toilet room? A. faucet B. drinking fountain (Your Answer) C. slop sink D. bidet Wrong Q.56) In the excreta drainage system, which of the following pipe materials should not be used underground? A. vitrified clay pipe B. hubless cast iron C. galvanized wrought iron (Correct Answer) D. none of the above (Your Answer) Wrong

Q.57) According to the Fire Code of the Philippines what is the required slope of all horizontal runs of dry standpipes system for purpose of drawing? A. 10% B. 20% (Correct Answer) C. 5% D. 2% (Your Answer) Correct Q.58) What portion of the trap should the vent pipe opening will not go below from a soil or waste pipe? A. slip joint B. weir (Your Answer) C. sleeve D. seal Correct Q.59) According to Rep. Act 1378 for at leasrt how many years must the appointee to the Board of Master Plumbers must have been actively engaged in the trade of plumbing? A. Ten years B. Eight years C. Two years D. Five years (Your Answer) Wrong Q.60) What is not needed to be installed when a combination standpipe system is installed in accordance with the Fire Code? A. dry standpipe (Correct Answer) B. wet standpipe C. sprinkler system D. siamese connection (Your Answer) Wrong Q.61) Who has the power to remove any member of the Board of Master Plumbers for neglect of duty, incompetence, malpratice and unprofessional or dishonorable conduct? A. President of the Philippines (Correct Answer) B. Civil Service Commisioner C. Chairman of PRC Commisioners (Your Answer) D. Commision on Appointments Wrong Q.62) Aside from Bell and Spigot, B & S in the code means

A. Ball and Socket (Your Answer) B. Browning and Smith C. Butt and Soldered D. Brown and Sharp (Correct Answer) Wrong Q.63) Article 3.2.2.2 of PD 1096 actually allows a Registered Master Plumber to sign and seal plans for new sanitary installations of more than twenty (20) plumbing units. Aside from being a Registered Master Plumber what is the other requirement that you must have before you can sign and seal it? A. A registered engineer (Correct Answer) B. An engineering graduate C. Having a minimum experience of 5 years D. A member of NAMPAP (Your Answer) Wrong Q.64) Wet venting is applied whenever A. there are 1 or 2 fixtures at every level (Your Answer) B. fixtures are of the same level (Correct Answer) C. fixtures are not vented individually D. none of these Wrong Q.65) According to Art 3.2.2.2 of PD 1096 what scope of work in plan preparation for new sanitary installations with more than 20 units does a sanitary engineer differs with a Registered Master Plumber? A. Det. all drawings of septic tanks in the absence of disposal field (Correct Answer) B. Sanitary plan, layout and details (Your Answer) C. Cost estimate D. Isometric drawings of roughing in. Wrong Q.66) What is the name of the professional orginazation for the Registered Master Plumbers here in the Philippines? A. National Association of Master Plumbing of the Philippines B. National Association of Master Plumbers of the Phillipines (Your Answer) C. National Master Plumbers Association of the Philippines (Correct Answer) D. National Master Plumbing Association of the Philippines Wrong Q.67) What kind of joint is not allowed in cast iron pipe? A. Welded B. Threaded (Correct Answer) C. Soldered D. Ball and Spigot (Your Answer)

Correct Q.68) Whenever the piping is pressurized by a pump or ejector, what kind of pipe should not be used in the excreta drainage system? A. vitrified clay pipe (Your Answer) B. hubless cast iron C. galvanized wrought iron D. none of these Wrong Q.69) For at least how many working days shall a required for inspection of the plumbing works be filed before such inspection be intended? A. 7 working days B. 5 working days (Your Answer) C. 3 working days (Correct Answer) D. 10 working days Wrong Q.70) What is the maximum allowable lead content of pipe and fitting for potable piping system? A. 0% B. 2% (Your Answer) C. 5% D. 8% (Correct Answer) Correct Q.71) To what provision does the design, construction and operation of deep wells for the abstraction of ground water will have to follow? A. National Plumbing Code of the Philippines B. National Standards for Drinking Water C. Water Code of the Philippines (Your Answer) D. Code of Sanitation Correct Q.72) Which of the following is the primary basics for sizing vertical rainwater piping in the Revised National Plumbing Code? A. intensity of rainfall (Your Answer) B. wind direction C. slope of roof D. roof area Wrong Q.73) What is the minimum age requirement for an appointee to become a member of the Board of Master Plumbers?

A. Thirty years old (Correct Answer) B. Twenty eight years old C. Thirty two years old D. Thirty five years old (Your Answer) Wrong Q.74) Drainage piping serving fixtures located below the crown level of the main sewer shall discharge into an approved water tight A. septic tank (Your Answer) B. sump (Correct Answer) C. cesspool D. leaching tank Wrong Q.75) To allow cleaning of the soil and waste line each cleanout should be installed A. in the direction of flow (Correct Answer) B. opening upward C. vertically above flow line D. all of these (Your Answer) Correct Q.76) What is the minimum number of approved slip joints fittings may be used on the putlet side of the trap? A. three B. two C. none D. one (Your Answer) Wrong Q.77) According to the Code, the desgign of roof gutters is based on the maximum roof area. What is the shape of the gutter does the desgn table for storm sewer is being based to? A. Circular B. Restangular (Your Answer) C. Ovate D. Semi-circular (Correct Answer) Wrong Q.78) One of the Code of Ethics for Master Plumber states "Take advantage of a salaried ____ position to complete unfairly with a practicing Master Plumber." What is the missing word? A. HIGHER B. GOVERNMENT (Correct Answer) C. PRIVATE D. COMPETENT (Your Answer)

Wrong Q.79) If ever pipes are to pass through masonry by using pipe sleeves, how far must each pipe be from each other? A. Minimum of three diameters, center to center (Correct Answer) B. Minimum of three diameters flushed from each hole (Your Answer) C. Minimum of 0.15 m on centers D. Maximum of two diameters flushed from each hole Correct Q.80) What is the nimimum floor area in every storey which is used for habitation, recreation, dining, study of work and which has an occupiped load of not more than 20, wherein a standard automatic extinguishing system is a A. 300 sq.m B. 200 sq.m (Your Answer) C. 400 sq.m D. 500 sq.m Wrong Q.81) Who was the first Charter President of NAMPAP? A. Antonio Mansueto Sr. B. Comelio G. Odvina C. Jesus Tanghal Dera (Your Answer) D. Catalino C. Casupanan (Correct Answer) Wrong Q.82) Which of the following is not included in a plumbing unit? A. Water Meter (Your Answer) B. Floor Drain C. Urinal (Correct Answer) D. Laundry Tray Correct Q.83) For the hot and cold water distribution system, on what side should the hot water supply be placed in combination fittings? A. left (Your Answer) B. right C. center D. none of these Correct Q.84) What is the maximum height should a water closet have if it is intended for a disabled person. A. 0.40m

B. 0.50m * C. 0.45m (Your Answer) D. 0.35m Correct Q.85) What Congress of the Republic of the Philippines approved after the third reading Rep. Act 1378 otherwise known as the Plumbing Law of the Philippines? A. Third Congress (Your Answer) B. Sixth Congress C. Second Congress D. Fifth Congress Wrong Q.86) What is the minimum number of years of experience must a Registered Master Plumber be before he can be a technical staff of a Building Office? A. one year B. three years (Correct Answer) C. two years D. five years (Your Answer) Wrong Q.87) NAMPAP is a professional organization of Registered Master Plumber under PRC. What is the PRC accreditation number of NAMPAP? A. 10 B. 14 (Correct Answer) C. 18 (Your Answer) D. 12 Correct Q.88) What is the minimum number of water closet in a floor level wherein you have to provide 1 water closet for disabled persons as provided by Batas Pambansa Blg. 344? in excess of this number you have to provide 2. A. 12 B. 15 C. 20 (Your Answer) D. 10 Correct Q.89) The following are the data required whenever a Registered Master Plumber sign the blueprint of the building plan EXCEPT A. Date of PRC registration B. PTR date C. Registration expiry date (Your Answer) D. none of these

Correct Q.90) In order as not to impede the movement of a person in wheel chair and to have a convenient access on the lavatory, what is the allowable knee recess vertical clearance that will be provided? A. 0.50 m to 0.80 m B. 0.60 m to 0.80 m C. 0.40 m to 0.70 m D. 0.60 m to 0.70 m (Your Answer) Correct Q.91) The minimum requirement for the slope of horizontal drainage pipes between manholes is A. 2% (Your Answer) B. 2 1/2% C. 3% D. 4% Wrong Q.92) What is the type of Siamese connection that all 125-millimeter dry standpipes shall be equipped with? A. three-way (Correct Answer) B. two-way (Your Answer) C. four-way D. one-way Wrong Q.93) For how many days shall the REvised National Plumbing Code will take effect following its complete publication in the Official Gazette? A. 100 days (Correct Answer) B. 60 days C. 50 days D. 30 days (Your Answer) Correct Q.94) What kind of septic tank is prohibited? A. CONCRETE B. STEEL C. PLASTIC D. WOODEN (Your Answer) Correct Q.95) When permitted by DENR, which of the following below is NOT used as a basis in determining the type of the private sewage disposal system to be used?

A. SOIL POROSITY B. GROUND WATER LEVEL C. NUMBER OF OCCUPANTS (Your Answer) D. LOCATION Correct Q.96) Aside from the number of fixture units connected to it, the size of the vent piping is determined by its A. number of inlets B. length (Your Answer) C. discharge D. loading Wrong Q.97) For a vertical drainage line that is installed to be truly in vertical position, what is the allowed degeree of the branch to be used? A. 10 B. 45 (Your Answer) C. 30 D. 60 (Correct Answer) Wrong Q.98) In 1966- 1969, the Board of Master Plumbers and NAMPAP prepared a curriculum for Plumbing Engineering and approved by the Department of Education. What was the first school that introduced the Plumbing Engineering curriculum? A. Feati University (Correct Answer) B. University of the Philippines C. Mapua Institute of Technology (Your Answer) D. National University Wrong Q.99)

With what standard specification must all pipe materials must conform to?

A. Product Strandard of the Philippines (Correct Answer) B. Interational Producers Standard C. Philippine Standard Council D. Department of Trade and Industry (Your Answer) Unanswered Q.100) What type of PVC female screws for water piping is prohibited under the code? A. Tapped B. Job fabricated (Correct Answer) C. Seamless D. Schedule 20 screws

Unanswered Q.101) What is the minimum allowable interval for the support of plastic pipes when installed vertically A. 2ft B. 5ft C. 1 meter (Correct Answer) D. 1.5 meter Correct Q.102) Where should the overflow pipe lead for overhead tank installed on buildings? A. Soil stack B. Scuppers C. Storm drain (Your Answer) D. Gutter Wrong Q.103) Within how many meters away shall unions be installed from regulating equipment, water heater, conditioning tank and similar equipment which require removal for servicing or replacement? A. 2 ft (Your Answer) B. 1 m C. 5 ft D. 0.3 m (Correct Answer) Wrong Q.104) Who is the current chairman of the Board of Examiners for Master Plumber? A. Fortunato Amosco B. Virgilio Simbulan (Correct Answer) C. Jessie Mariano (Your Answer) D. Valerin Maogila Wrong Q.105) What shall be issued by the Administrative Authority for the construction of a part of a large and/or complicated plumbing system before the entire plans and specifications for the whole system have been submitted or approved? A. restraining order (Your Answer) B. partial permit (Correct Answer) C. summon D. evaluation sheet Correct Q.106) What is the minimum pipe size of the standpipe if the highest outlet is located 23 meters or less above the Fire Service connection?

A. 3 inches B. 6 inches C. 5 inches D. 4 inches (Your Answer) Correct Q.107) What government agency is tasked to set the criteria in the discharge of sanitary sewage from buildings or pretreated industrial wastewater directly into the nearest sanitary sewer main? A. National Pollution Control Commission B. Dept of Environment and Natural Resources (Your Answer) C. Department of Health D. Department of Public Works Correct Q.108) What is the fee if an expired plumbing permit is renewed? A. P 150.00 B. Equal to the original fee C. Double of the original fee D. 1/2 of the original fee (Your Answer) Wrong Q.109) Who among the Board Examiners is not a signatory to PRC Resolution 04 that request for the adoption and promulgation of the Revised National Plumbing Code of the Philippines in 1999? A. Imelda Perez (Correct Answer) B. Aida Emely Luz C. Fortunato Amosco (Your Answer) D. Jesus Pacheco Wrong Q.110) What is the maximum water pressure must standpipe fittings and connections must withstand to when ready for service? A. 21 kg/cm² (Correct Answer) B. 34 kg/cm² C. 15 kg/cm² (Your Answer) D. 8 kg/cm² Correct Q.111) Where practical, all pipes from fixtures shall be run in what direction with respect to the nearest wall or building line? A. offset B. parallel (Your Answer) C. across D. perpendicular

Correct Q.112) Unless serving sinks or urinals, cleanouts may be omitted on a horizontal drain line that is A. equal to 2.0 meters B. greater than 2.0 meters C. less than 1.5 meters (Your Answer) D. none of these Wrong Q.113) Accordingto Batas Pambansa Blg. 344, what type of urinal should be provided for disabled persons? A. WALL-HUNG TYPE (Your Answer) B. PEDESTAL TYPE C. TROUGH TYPE (Correct Answer) D. NONE OF THESE

Your Report

dn = 0.005 mm x 25.4 x 92

36-n/39

Wrong Q.1) Unions shall be installed in a water supply system within 12 inches of ___ A. a control valve B. a house valve C. regulating equipment (Correct Answer) D. transition fittings (Your Answer) Correct Q.2) Vent pipes protect fixture traps against ___ A. evaporation B. siphonage (Your Answer) -pressure C. clogging D. cross-connections Correct Q.3) Parallel vent stacks are required for drainage stacks that extend above the building drain ___ A. five stories or more B. 10 stories or more (Your Answer) C. 50 ft D. 100 ft Correct Q.4) The maximum fixture unit loading allowed on a 2-inches waste stack is ___ A. 4 B. 6 C. 8 D. 16 (Your Answer) Correct Q.5) All malleable iron water fittings shall be ___ A. 2 inch or smaller B. galvanized (Your Answer) zinc coated C. flanged D. removed Wrong Q.6) the color stripe on type "K" hard-drawn copper tubing is ___ A. green (Correct Answer) B. blue C. red (Your Answer) D. yellow

Wrong Q.7) Stills, sterilizers and similar equipment that produce waste shall be __ A. connceted directly to the building drains (Your Answer) B. indirectly connected to a lavatory taolpiece C. indirectly connected by means of an airgap (Correct Answer) D. directly connected to the building drain using an airbreak Correct Q.8) The size of the yoke vent that making the yoke vent intersects with the drainage stack is __ not less in diameter than either the drainage or the vent stack, whichever is smaller (Your Answer) B. a minimum of 4 inches C. two pipes sizes larger than the drain line D. two pipes sizes smaller than the drain line Correct A.

Q.9) Each vent pipe or stack shall extend through its flashing and shall terminate vertically above the roof at least ___ A. 6 inches (Your Answer) B. 12 inches C. 18 inches D. 24 inches Wrong Q.10) A standpipe for a clothes washer shall have a minimum and maximum length of _ A. 4in. and 12in. B. 18in. and 30in. (Correct Answer) C. 18in. and 24 in. D. 12in. and 36in. (Your Answer) Wrong Q.11) ABS or PVC-DWV piping installations exposed within ducts or plenums shall be limited to a flame-spread index of not more than 25 or a smoke index of 50 except for __ A. two-storey buildings B. structures not over three floors above grade (Your Answer) C. the restriction found in IS 5 and 9 D. single family homes (Correct Answer) Wrong Q.12) Sheet lead used for flashins of vents terminals shall be not less than __

A. 2 lbs per sq. ft B. 3 lbs per sq. ft (Correct Answer) C. 4 lbs per sq. ft (Your Answer) D. 5 lbs per sq. ft Correct Q.13) With few exceptions, all horizontal drainage piping shall be provided with a cleanout at ___ A. each 45-degree fitting B. its upper terminal (Your Answer) C. each offset Correct Q.14) The addition of leak-sealing additives to joint packing shall be __ A. legal B. by approval of the engineer C. by approval of the architect D. prohibited (Your Answer) Wrong Q.15) A horizontal drain pipe has an existing load 30 fixture units, after connecting the discharge pipe from an ejector rated 60 gpm, the total load on the horizontal drain pipe will be ___ A. 90 fixtures B. 120 fixtures (Your Answer) C. 130 fixtures D. 150 fixtures (Correct Answer) Wrong Q.16) Fittings on screwed pipe shall be of (the) __ A. cailk-drainage pipe B. galvanized steel (Your Answer) C. recessed drainage type (Correct Answer) D. duro iron Wrong Q.17) Ballcocks in water closet tanks shall be installed so that the critical level of the water inlet is above the full opening of the overflow pipe at least ___ A. 1/2 inch (Your Answer) B. 1inch (Correct Answer) C. 3inches D. 6inches Wrong Q.18) Condensate or wastewaster shall not drain over __

A. dry wells B. a public way (Correct Answer) C. leach pits D. the tailpiece of plumbing fixtures (Your Answer) Wrong Q.19) Horizontal termination of vents from any openable window, door opening, air intake or vent shaft shall be not less than ___ 3 FEET A. 1 ft B. 2 ft (Your Answer) C. 10 ft (Correct Answer) D. 12 ft Wrong Q.20) An indirect waste receptor shall not be installed in a ___ A. toilet room (Correct Answer) B. boiler room C. commercial kitchen D. air compressor equipment (Your Answer) Wrong Q.21) PEX tubing shall not be installed within the first ___ of piping connected too a water heater (in inches) A. 12 (Your Answer) B. 18 (Correct Answer) C. 24 D. 36 Correct Q.22) Backflow prevention devices installed in the water supply line to steam boilers shall be installed __A. 6 inhes above the floor B. 6 inches above the boiler C. 12 inches above the floor (Your Answer) D. 12 inches above the boiler Correct Q.23) All melleable iron vent or water fitting shall be __ A. concealed B. exposed C. galvanized (Your Answer) D. painted Correct

Q.24) One factor for determining the size of a vent pipe is ___ A. its accessibility B. its length (Your Answer) C. the type of building D. the price of material Correct Q.25) The piping material no approved in the code for water piping located inside a building is ___ A. brass B. CPVC C. asbestos cement (Your Answer) D. PEX Correct Q.26) The diameter of an individual vent shall not be less than ___ A. 1-1/4 inches (Your Answer) B. 1-1/2inches C. 2 inches D. 3 inches Wrong Q.27) No drain, overflow, or relief vent from a water supply system. or any other discharges under pressure shall be discharge to the drainage system A. by means of indirect waste through an airgap or airbreak (Your Answer) B. by direct connection (Correct Answer) C. through the garbage disposal D. with a branch wye tailpiece Wrong Q.28) Galvanized steel piping installed under a concrete floor slab within a building shall _ A. have a machine-applied coating (Correct Answer) or wrapping B. have a spiral wrap C. be installed without joints (Your Answer) D. be installed with brazed joints Wrong Q.29) __ are considered suds-producing fixtures A. kitchen sinks (Your Answer) B. bathtubs C. washing machine standpipes D. all of the above (Correct Answer) Correct

Q.30) The combination of vent pipes that will provide sufficient aggregate crosssectional vent area for required a 4-inch house sewer is ___ A. 1-2 inch and 4 - 1-1/2 inch B. 3-2 inch and 1 - 1-1/2 inch C. 2-2 inch and 1 - 1-1/2 inch D. 4 - 2 inch (Your Answer) Wrong Q.31) Cleanouts shall be designed to be __ A. threaded (Your Answer) B. gastight and watertight (Correct Answer) C. easy opening D. concealed Wrong Q.32) The primary reason for installing backflow prevention assemblies is to ___ A. prevent scalding prevent pollution and contamination of the potable water supply (Correct B. Answer) C. prevent mixing of hot and cold water D. prevent excessive pressure (Your Answer) Wrong Q.33) A straight run of building sewer will require cleanout at intervals not to exceed __ A. 50 ft (Your Answer) B. 75 ft C. 100 ft (Correct Answer) D. 300 ft Wrong Q.34) The type of valve required on a building supply to any building is a ___ A. fullway valve (Correct Answer) B. butterfly valve C. globe valve D. corporation valve (Your Answer) Wrong Q.35) No chemical waste shall be discharged into the ground, local sewer, or other means without __ A. being properly vented B. approved of the local Authority Having Jurisdiction (Correct Answer) C. first going through a chemical waste separator (Your Answer)

D. being properly trapped Wrong Q.36) Drains, overflows, or relief pipes from a water distribution system shall be connected to the building drain by _ A. indirect waste piping through a vented trap B. indirect watse by means of an airgap (Correct Answer) C. direct connection to the building drain D. direct conncetion to the building drain through a trap (Your Answer) Correct Q.37) The maximum discharge capacity capacity (for intermittent flow only), in gallons per minute, for one fixture unit is equal to ___ A. 7-1/2 gpm (Your Answer) B. 15 gom C. 30 gpm D. 50 gpm Correct Q.38) Copper water tube Type "M" may be installed within a building ___ A. below slab only B. above ground only (Your Answer) C. for cold water only D. if it is wrapped Correct Q.39) Combination temperature and pressure relief valve shall be installed ___ A. on all nonstorage-type water heaters (Your Answer) B. based on thier listing requirements and the manufacturer's instruction C. within 3 inches to 6 inches of the water heater D. in lieu of pressure-relief valves Wrong Q.40) All indirect waste piping that requires an airgap shall discharge into the building drainage system through ___ A. an automatic vent B. a drainage airgap of 1 inch minimum (Correct Answer) C. a trap (Your Answer) D. an airgap of two pipe diameters Correct Q.41) The acceptable fitting for connecting a horizontal drain line with another horizontal drain line is a __

A. sanitary tee B. cross tee C. combination Y and 1/8 bend (Your Answer) D. side inlet 1/4 bend Wrong Q.42) The code requirement for "and adequate supply of potable running water" is for A. cleansing and sanitation (Correct Answer) B. protection of trap seals C. water-cooled equipment D. hydronic systems (Your Answer) Wrong Q.43) The available pressure at the water meter is 80 psi. At the highest supply outlet, 36 feet above the water meter, the pressure would be __ psi A. 62 (Correct Answer) B. 44 C. 116 D. 80 (Your Answer) Correct Q.44) Vents terminals in locations having minimum design temperatures below 0 deg F shall be a minimum of ___ A. A - 2 inches (Your Answer) B. B - 4 inches C. C - one pipe size larger than the required D. A and C apply Wrong Q.45) Building sewers 8 inches or larger may have a slope of not less than ___ A. 1/16 inch per foot (Correct Answer) B. 1/2 inch per foot C. 1/4 inch per foot (Your Answer) D. 1/8 inch per foot Wrong Q.46) All backflow devices or assemblies shall be tested by a ___ A. licensed agent B. representative from the Authority Having Jurisdiction (Your Answer) C. certified backflow tester (Correct Answer) D. third-party certified agency Correct Q.47) The clearance required in front of a 2-inch cleanout shall not be less than __

A. 6 inches B. 12 inches (Your Answer) C. 18 inches D. 24 inches Wrong Q.48) Except for plastic pipe, in lieu of water test, drainage piping may be tested with__ A. air (Correct Answer) B. ether C. smoke (Your Answer) D. gas Wrong Q.49) Water piping may be installed in the same trench with sewer piping made of ___ A. cast iron (Correct Answer) B. clay (Your Answer) C. asbestos cement D. bituminized fiber Correct Q.50) The minimum size drain line for wall-hung urinal is __ inches A. 2 (Your Answer) B. 1-1/4 C. 1-1/2 D. 3 Wrong Q.51) Each pressure relief valve installed inside of the building shall have a ___ A. full sized drain extended to outlet (Correct Answer) B. check valve to prevent backflow (Your Answer) C. trapped drain line D. drain that terminates 30 inches or more above grade Wrong Q.52) CPVC water pipe may be used for hot and cold water distribution systems ___ A. in residences only (Your Answer) B. within a building (Correct Answer) C. below ground only D. aboveground only Correct Q.53) Joints at the roof around vent pipes shall be made watertight by the use of ___

A. waterproof epoxy sealer B. three layers 15 pound felt C. hot tar compound D. flashings (Your Answer) Wrong Q.54) Vents terminating in roof areas used for sunbathing shall be extended above the roof at least ___ A. 7 ft (Correct Answer) B. 10 ft (Your Answer) C. 12 ft D. 15 ft Wrong Q.55) Copper tube shall not be used for ___ A. chemical waste (Correct Answer) B. aboveground drainage piping C. water piping (Your Answer) D. underground drainage piping Wrong Q.56) Building supplies shall be no smaller than that required for installation and, in no case, smaller than ___ A. 1/2 inch (Your Answer) B. 3/4 inch (Correct Answer) C. 1 inch D. 2 inches Correct Q.57) If, due to structural conditions, horizontal vents are less than 6 inches above the overflow rim of the fixture, the horizontal portion shall be installed with __ A. venting material and fittings B. drainage material and fittings and grade to drain (Your Answer) C. smaller diameter piping D. larger diameter piping Wrong Q.58) Flaring tools are used to make joints for ___ A. hard Type K copper tubing (Your Answer) B. soft copper water tubing (Correct Answer) C. yellow brass water piping D. aluminum water piping Wrong

Q.59) The maximum distance between manholes shall not exceed __ A. 50 ft B. 100 ft (Your Answer) C. 200 ft D. 300 ft (Correct Answer) Wrong Q.60) A water piping system with a pressure of 110 psi will require a(an) ___ A. reduced pressure backflow device B. extra-heavy pipe and fittingS C. pressure regulator and strainer (Correct Answer) D. pressure-relief valve (Your Answer) Wrong Q.61) Above all downstream piping for lawn sprinker system atmospheric vacuum breakers (in inches) A. 1 B. 6 (Correct Answer) C. 12 (Your Answer) D. 24 Wrong Q.62) No chemical waste vent shall ___ A. terminate outside the building B. connected to any vent from water service lines C. intersect vents for other services (Correct Answer) D. connect to any waste line (Your Answer) Wrong Q.63) Threads in drainage fittings shall be tapped to allow for __ A. adjustment (Your Answer) B. grade (Correct Answer) C. expansion D. economy Wrong Q.64) A drainage stack extends 14 stories above the building drain and is served by a parallel vent stack. A relief yoke vent connection between the vent stack and the drainage stack is required at ___ A. floors 5 and 10 (Your Answer) B. floors 4 and 9 (Correct Answer) C. floors 4 and 10 D. floors 5 and 9 Wrong

Q.65) The distance between a water heater and the union on the water lines shall not be more than ___ A. 6 inches B. 12 inches (Correct Answer) C. 18 inches (Your Answer) D. 24 inches Wrong Q.66) above the highest part of a urinal equipped with a flushometer valve (in inches) A. 1 (Your Answer) B. 6 (Correct Answer) C. 3 D. 12 Wrong Q.67) The minimum size condensate waste pipe from a 12-ton refrigeration unit is ___ A. 3/4 inch (Correct Answer) B. 1 inch (Your Answer) C. 1-1/4 inches D. 1-1/2 inches Correct Q.68) The minimum sizes of vertical and horizontal drainage shall be determined from the __ A. location of fixturtes B. type of building C. total fixture units (Your Answer) D. total bathrooms Wrong Q.69) The owner shall make and keep a __ A. blueprint of the construction (Your Answer) B. log of all chemicals used permanentrecord of all piping and venting carrying chemical waste (Correct C. Answer) D. record of materials used for all chemical waste Wrong Q.70) If the trap from a sink located in a bar cannot be vented ___ the drain shall discharge through an airgap or airbreak into an approved receptor that is vented B. the fixture must be relocated (Your Answer) C. the discharge may be pumped to an approved receptor (Correct Answer) A.

D. a drum trap shall be used Correct Q.71) An approved material for closet screws or bolts is __ A. steel B. aluminum C. lead D. brass (Your Answer) Wrong Q.72) Floor drains in walk-in coolers shall discharge __ A. to a grease interceptor (Your Answer) B. directly to the exterior of the building C. directly to tha main building drain to a separate drainage line discharging into an outside receptor through an D. airgap or airbreak (Correct Answer) Wrong Q.73) Water shall not be discharged under pressure directly to the waste system if it has a temperature of __ or more A. 212 deg F B. 180 deg F (Your Answer) C. 140 deg F (Correct Answer) D. 232 deg F Wrong Q.74) Every indirect waste interceptor recieving discharge containing particles that would clog the receptor drain shall __ A. A - have a readily removable beehive strainer (Correct Answer) B. B - drain into a funnel connected to the floor sink C. C - be connected directly into the drainage system D. both A and B (Your Answer) Unanswered Q.75) The maximum fixture units allowed on a 4-inch horizontal drain with a 1/8 inch per foot slope is A. 173 (Correct Answer) B. 225 C. 215 D. 256 Correct Q.76) Condensate from fuel-burning condensing appliances shall be collected and discharged ____

A. to a planter box to a public way B. to an approved plumbing fixture or disposal area (Your Answer) C. directly connected to the building sewer Correct Q.77) Wall-hung lavatories shall be supported by ___ A. their connections B. metal hangers (Your Answer) C. rigid traps D. wooden legs Wrong Q.78) A solidly formed subbase is required as to pitch shower pan linings to weep holes in the subdrain with a fall of ___ A. 1/8 inch per foot (Your Answer) B. 1/4 inch per foot (Correct Answer) C. 1/16 inch per foot D. 1/32 inch per foot Wrong Q.79) Other than system sized by the use of Table 6-6, the maximum velocity of a cold water system containing copper and copper alloy tube and fittings shall be limited to ___ A. 5 ft per second (Your Answer) B. 8 ft per second (Correct Answer) C. 10 ft per second D. 15 ft per second Wrong Q.80) No plumbing fixtures that is receiving discharge from indirect waste pipes shall be installed until fordt approved by the __ A. Architect B. local health department (Your Answer) C. Authority Having Jurisdiction (Correct Answer) D. mechanical engineer Unanswered Q.81) Under certain conditions, traps serving sinks that are part of the equipment of bars, soda fountains, and counters __ A. need not to be vented (Correct Answer) B. need relief vents C. may be wet vented D. shall be vented Wrong

Q.82) Immediately ahead of each water-supplied appliance and each slip joint or nonmetallic water supply connection required a _ A. control valve (Correct Answer) B. check valve C. backwater valve (Your Answer) D. solenoid valve Wrong Q.83) Pipes carrying wastewater from swimming or wadding pools, including pool drainage, backwash from filters, and discharge from pumps, shall be ___ A. installed as an indirect waste (Correct Answer) B. connected to a holding tank (Your Answer) C. connected to an interceptor D. directly connected to the building drain and properly trapped and vented Wrong Q.84) Water valves 2-1/2 inches and larger may have bodies that are ___ A. galvanized (Your Answer) B. die-cast C. aluminim core D. cast iron (Correct Answer) Wrong Q.85)

A 2-inch vent pipe will serve a total of __

A. 14 bathtubs B. 16 showers (Your Answer) C. 24 lavatories (Correct Answer) D. 15 water closet Unanswered Q.86) Condensate waste shall discharge to the drainage system by means of a(an) __ A. indirect waste pipe (Correct Answer) B. direct waste pipe C. Johnson Tee D. backflow preventer Wrong Q.87)

Drinking fountain may be installed with _

A. a hose connection (Your Answer) B. a condensate pump C. a Hartford loop D. indirect waste (Correct Answer) Unanswered

Q.88) Macerating toilet system shall be restricted to single bathrooms for ___ A. private use B. public use C. no restriction (Correct Answer) D. not allowed Unanswered Q.89) ___ tube shall not be used for chemical or industrial waste, as defined in Section 811.1 A. glass B. PVC C. cast iron D. copper (Correct Answer) Correct Q.90) The tailpiece diameter for lavatories and drinking fountains shall no be less than ___ A. 1-1/4 inches (Your Answer) B. 1-3/8 inches C. 1-1/2 inches D. 1-3/4 inches Wrong Q.91) Atmospheric-type vacuum breakers shall not be subjected to ___ A. back pressure (Correct Answer) B. hot water C. use in a laboratory D. intermittent use (Your Answer) Correct Q.92) Each outlet in a nonpotable waterline that may be used for drinking purposes shall be posted ___ A. DANGER-PROCESSED WATER B. DANGER-CONTAMINATED WATER C. DANGER-POLLUTED WATER D. CAUTION-NONPOTABLE WATER DO NOT DRINK (Your Answer) Correct Q.93) The maximum horizontal length permitted for a required 2-inch vent pipe is ___ A. 20 ft B. 40 ft (Your Answer) C. 60 ft D. 120 ft Correct

Q.94) Changes in direction of copper tubings may be made with ___ A. bending equipment (Your Answer) B. plastic fittings C. metallic fittings D. heat annealing Wrong Q.95)

All receptors recieving the discharge from indirect waste piping shall be ___

A. approved for the proposed use B. shaped and sized to prevent splashing or flooding (Your Answer) C. located where they are readily accessible for inspection and cleaning D. all of the above (Correct Answer) Unanswered Q.96) Lead waste pipe that may recieve discharge containing acid or corrsive chemicals, and each vent pipe connected to it, shall be not less than ___ wall thickness A. 1/16 inch B. 3/32inch C. 1/8inch (Correct Answer) D. 5/32inch Correct Q.97) The minimum size vent that may serve a 4-inch trap is __ A. 1-1/4 inches B. 1-1/2 inches C. 2 inches (Your Answer) D. 4 inches Wrong Q.98) Water piping pressure shall be for a period of not less than ___ A. 5 minutes B. 10 minutes C. 15 minutes (Correct Answer) D. 30 minutes (Your Answer) Wrong Q.99) Horizontal vent pipes shall be level or so graded as to drip back by gravity to ___ A. the main vent pipe (Your Answer) B. the drainage pipe they serve (Correct Answer) C. the loop vent D. the main soil stack Correct

Q.100) Sumps for macerating toilets shall be __ A. above ground B. a minimum of 10 gallons C. watertight and gastight (Your Answer) D. in the same room as the toilet Correct Q.101) The maximum trap loading for a 3-inch trap is A. 1 unit B. 3 units C. 4 units D. 6 units (Your Answer) Correct Q.102) ABS and PVC DWV piping installation shall be limited to structures of __ * A. noncombustible construction B. unlimited height (Your Answer) C. two stories in height D. combustible construction Wrong Q.103) Hard-drawn copper tubing, marked with a blue stripe, is referred to as ___ A. Type "K" (Your Answer) B. Type "L" (Correct Answer) C. Type "M" D. Type "DWV" Correct Q.104) A domestic dishwasher, with independent drain, has a drainage fixture unit value of __ * A. 2 (Your Answer) B. 3 C. 4 D. 1 Correct Q.105) The fitting that is required for making the yoke vent intersection with the drainage stack is a ___ A. sanitary tee B. tapped tee C. double tee branch D. wye branch (Your Answer)

Wrong Q.106) The quantity of water required to be supplied to every plumbing fixture shall be represented by ___ A. gallons per minute (Your Answer) B. fixture units (Correct Answer) C. feet per second D. available head pressure Correct Q.107) Joints between steel and cast-iron pipe shall be __ A. threaded only B. caulked or threaded (Your Answer) C. caulked only D. brazed Wrong Q.108) Showers in all buildings shall be provided with individual contrrol valves of the ___ A. A- pressure balance type B. B- thermostatic mixing valve type C. C- 140 degree F limit control type (Your Answer) D. A and B apply (Correct Answer) Correct Q.109) Approved strainers having an approved waterway area are not required for ___ A. kitchen sinks B. lavatories C. urinals (Your Answer) D. bathtubs Wrong Q.110) The clear space in front of any water closet or bidet shall not be less than ___. A. 12 inches B. 18 inches (Your Answer) C. 24 inches (Correct Answer) D. 30 inches Wrong Q.111) Increasing vents one pipe size will __ A. provide increased drainage B. allow a uniform installation (Your Answer) C. allow vents of longer vents (Correct Answer)

D. allow vents to be shorter Wrong Q.112) The drainage line from an ejector shall be provided with a ___ A. backwater or swing check valve, and gate valve (Correct Answer) B. backwater valve or double check valve and globe valve C. backwater valve, gate valve and flange (Your Answer) Correct Q.113) Water lifts, expansion tanks, cooling jackets, sprinkler system, drip or overflow pans, and other similar devices that discharge clear wastewater into the building drainage system shall ___ A. be directly trapped B. be discharged into an interceptor C. discharged into an indirect waste receptor (Your Answer) D. be individually vented Correct Q.114) 3 inch horizontal drainage piping shall have a grade of slope of not less than ___ A. 1/4 inch per foot (Your Answer) B. 1/8 inch per foot C. 1/2 inch per foot D. 1 inch per foot Wrong Q.115) Water piping system shall be designed on the basis of the ___ A. maximum pressure (Your Answer) B. average service pressure C. average residual pressure D. minimum pressure (Correct Answer) Wrong Q.116) The drainage fixture unit value assigned to a bathtub or combination bath/shower is __ A. 1.5 (Your Answer) B. 2.0 (Correct Answer) C. 2.5 D. 3.0 Correct Q.117) After allowing for friction and other pressure losses, the residual water pressure shall be at least ___. A. 0.433 psi

B. 7.5 psi C. 15 psi (Your Answer) D. 29 psi Correct Q.118) Cast-iron fittings, up to and including two inches in size, when used in connection with potable water piping, shall be ___ A. extra heavy B. flanged C. disallowed D. galvanized (Your Answer) Wrong Q.119) Except for alleys and streets, vent termination from property lines shall not be less than __ A. 1 ft (Your Answer) B. 2 ft C. 3 ft (Correct Answer) D. 4 ft Wrong Q.120) The distance from the vent pipe opening to any vertical surface shall be at least __ A. 6 inches B. 12 inches (Correct Answer) C. 18 inches D. 24 inches (Your Answer) Wrong Q.121) Whenever fixtures and/or fixture fittings are installed that require a residual water pressure higher than 15 pounds per square inch (103.5 kPa)__ A. A- that minimum pressure shall be provided (Correct Answer) B- provision shall be made to use fixtures that do not require higher residual B. pressure C. C- the piping sytem shall be not less than copper tubing Type L D. A and C apply (Your Answer) Correct Q.122) The minimum size trap and trap arm for a bathtub is __ A. 1-1/2 inches (Your Answer) B. 2 inches C. 2-1/2 inches D. 3 inches Wrong Q.123) Copper tubing used for water piping under concrete slab within a building shall be

___ A. installed with brazed joints with cast brass fittings (Correct Answer) B. protected with a factory applied coating C. installed without joints where possible D. installed with Type K copper tube with brazed joints (Your Answer) Correct Q.124) Every abandoned building sewer shall be plugged or capped __ A. at the sidewalk or curb B. within 5 ft of the property line (Your Answer) C. at the street tap D. where convenient Wrong Q.125) Whenever practicable, all piping recieving chemical waste shall be ___ A. concealed B. readily accessible (Correct Answer) C. covered (Your Answer) D. in clear view Correct Q.126) A domestic dishwashing machine shall be connected to the drainage system by using __ A. an approved airgap fitting (Your Answer) B. a Hartford loop C. a double check valve D. a direct connection Correct Q.127) The pipe size for the common vent serving lavatories installed back-to-back shall not be less than __ inch(es) A. 1 B. 1-1/4 C. 1-1/2 (Your Answer) D. 2 Correct Q.128) Above the overflow rim of a vat (in inches) A. 1 B. 2 C. 6 (Your Answer) D. 12 Correct

Q.129) Sewer and water piping may be installed in the same trench (with the proper clearances) if the sewer piping is __ A. cast iron B. PVC C. extra strength vitrified clay D. any of the above (Your Answer) Correct Q.130) Changes in direction of vent piping shall be made by __ A. heating the pipe and bending B. welded joints where possible C. threaded fittings of caulked joints D. appropriate use of fittings (Your Answer) Wrong Q.131) The developed length from the fixture outlet of a bar sink to a receptor shall not exceed __ ft? A. 6 (Your Answer) B. 5 (Correct Answer) C. 3 D. 15 Wrong Q.132) Devices that are not regularly classified as plumbing fixtures, but which have a drip or drainage outlets, shall be drained by __ A. a connection directly to the building indirect waste pipes discharging into an open receptor through an airgap or B. airbreak (Correct Answer) C. direct connection to a storm sewer D. indirect waste piping connected to the building drain (Your Answer) Wrong Q.133) Except for plastic piping, water piping systems may be tested with ___ A. 10 psi air pressure B. 50 psi air pressure (Correct Answer) C. 10 psi Carbon dioxide D. 60 psi Carbon dioxide (Your Answer) Wrong Q.134) Flexible corrugated connectors of copper or stainless steel for water heater connectors shall be limited to ___ A. 12 inches (Your Answer) B. 18 inches C. 24 inches (Correct Answer)

D. 36 inches