API 570 Day 2 Book (1 to 51)

API 570 – DAY 2 BOOK B-16.5- 2009 B-31.3-2010

Southern Inspection Services

ASME B 16.5 Practice Questions 1. The maximum depth and radial projection of an imperfection (deeper than the bottom of the serration) on a NPS 14 raised face flange is: a. 0.31” b. 0.018” c. 0.18” d. 0.25” 2. On an NPS 24,600 class flange, the thickness of the flange (minimum) is a. 4 ½” b. 3.00” c. 6.0” d. 4.0” 3. The allowable pressure (in psig) on a 100ºF, Class 150 8” flange made from A-182 Grade F2 material is: a. 170 b. 290 c. 300 d. 400 4. If a Class 1500 flange is to be made form A-182 F347 stainless steel and will be used at 280psig with a carbon content of 0.09%, at what maximum temperature can this flange be used? a. 1000º F b. 1300º F c. 1180º F d. 2000º F 5. What 16? a. b. c. d.

is the minimum wall thickness of a Class 900 fitting that is NPS 1.56” 2.6” 3.2” 4.1”

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Southern Inspection Services 6. What is the rated working pressure of a flanged fitting that is a 400 Class with a material stress value of 16,200 psi? a. 1000 psig b. 1500 psig c. 800 psig d. 740 psig 7. What is the minimum wall thickness of a NPS 5 Class 1500 fitting? a. 0.091” b. 0.91” c. 1.00” d. 1.15” 8. What is the maximum system hydrostatic test pressure required for a Class 300 flange that is made from Group 1.1 material? a. 1125 psig b. 450 psig c. 1000 psig d. None of the above 9. A local area has been thinned on the wall thickness of a flanged fitting. The fitting is NPS 8 Class 400 and the local area has been thinned to 0.400”. Is this corrosion acceptable per ASME B 16.5? a. Yes b. No c. Cannot be calculated from information given d. Wall thickness may not be less than that shown in B 16.5 10. In question No.9, what is the maximum circular area of sub-minimum thickness allowed in square inches? a. 2.75 b. 0.74 c. 1.85 d. 0.431 11. From problem No.9 and No.10 above, if two areas of sub-minimum thickness are observed on the fitting, what is the minimum distance between the edges of these circles? a. 3.0” b. 2.70” c. 8.0” d. 3.70”

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Southern Inspection Services 12. What is the maximum system hydrostatic test pressure required for a Class 600 flange in a flanged joint made from Group 3.5 material? a. 2250 psi b. 1500 psi c. 1000 psi d. None of the above 13. A local area has been thinned on the wall of a flanged fitting. The fitting is NPS 12 Class 900 and the local area has been thinned to 0.945”. What is the minimum acceptable thickness for this thinned area per ASME B 16.5? a. 0.9375” b. 1.250” c. 1.750” d. Cannot be calculated from information given 14. From the information in Question No.13, What is the maximum circular area of sub-minimum thickness allowed in square inches? a. 2.75” b. 1.33” c. 1.85” d. 0.431” 15. Using the information in Questions No.13, 14, if two areas of subminimum thickness are observed on the fitting, what is the minimum distance between the edges of these circles? a. 3.0” b. 2.70” c. 6.52” d. 4.70” 16. What would be the calculated thickness of a new NPS 14 flanged fitting with a 900 psi class designation? a. 0.830” b. 1.38” c. 1.112” d. None of the above

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Southern Inspection Services 17. A NPS flanged fitting is operating at a temperature of 650º F and has a pressure class ranting of 600 psi. Using a stress value of 17,400 psi, what would be the maximum permitted rated working pressure? a. 2000 psi b. 1193 psi c. 1175 psi d. 1500 psi 18) ASTM A 105 flange (300 lb rating) maximum system hydrostatic pressure shall not exceed: 16.5 Question a. 600 psi b. 450 psi c. 1110 psi d) 1125 ps 19) Suitable rating for pipe flanges (A105) for Design pr = 400 psi, design temp = 400 Degf will be: 16.5 Question a) 600 lb minimum. b) 300 lb minimum c) 400 lb minimum d) None of the above

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Southern Inspection Services

ANSWERS Q.NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

ANS C D B A A D B A B B D A A B C B B R C

Q1)

Table II- 3, , Ans is 0.18 inch

Q2)

Table II -16, Ans D

Q3)

Table II-2-1.7, , Ans 290 Psi ie B

Q4)

Pressure –Tem Table II-2-2.5 note Ans is A

Q5)

E3, , Ans A

Q6)

APX A 2.1 Ans is Pr xS r /(8750) = 400 x 16200/ 8750 = 740 psig

Q7)

Table E4, , 0.91 Inch, Answer B

Q8)

TableII-2-1.1, Working pressure is 740 Psig. So the test pressure is 1.5 x 740 = 1100, with 25 Psig limit it is 1125 Psig

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Southern Inspection Services Q9)

Find mim thk for NPS 8 inch Class 400 flange fitting from table E1 as 0.56 inch. So as per 6.1.2 minimum thickness that should exist is 0.75 X 0.56 inch= 0.42 But it is thinned to 0.400 inch which is lower than 0.42 inch. So not acceptable. So ans is B

Q10) The Dia of circle of sub minimum thickness is as per 6.1.2 0.35 X SQ Root of (D x t), Here D is tabulated fitting inside dia From table Here inside dia is also 8 inch i.e. 0.35 x sq root of (8 x 0.56) = 0.7408 inch. So ans is B Q11) As per 6.1.2 1.75 Sq roort of ( d x t) = 1.75 x Sq Root of ( 8 x .56) = 3.70 So ans is D Q12) Table II-2-3.5, 1500 Psig from table. So hydro test is 1.5 x 1500 = 2250 Psig So answer is A Q13) So thk from E 3 and 6.1.2 is 1.25 inch So thk is 0.75 x 1.25 = 0.9375 so Ans is A Q14) As per 6.1.2 Dia of Sub minimum thk circle is 0.35 X SQ Root of ( D x t) Which is = 0.35 x sq root of ( 11.12x 1.25) = 1.304 So Ans is B Q15) As per 6.1.2 Ans is 1.7 Sq root ( D xT0= 1.75 x sq root of ( 11.12x 1.25) Which is = 6.52, Ans = B Q16) Table E-3

1.38 inch, B

Q17) APX A 2.1

Ans is 600 x 17400/8750= 1193 Psi. So ans is B

18), Table II- 2-1.1 19) Table II- 2-1.1

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Southern Inspection Services

B 16.5 TIPS 1.

Flanges with rating class designations 150, 300, 400, 600, 900,1500, and 2500 in sizes

2.

Service Conditions Criteria for selection of materials suitable for particular fluid service are not within the scope of this standard

3.

Hub End. The standard flange shall be provided with square cut end.

4.

Thee name of the Manufacturer and Material Should be marked as required in MSS-SP-25

5.

Table 1A gives the List of Materials and It’s Constituents

6.

Conformance The designation B16 or B16.5 shall be applied to the flange or flanged fitting, preferably located adjacent to the class designation, to indicate conformance to this standard. The use of the prefix ASME is optional.

7.

Temperature Temperature markings are not required on flanges or flanged fittings, however, if marked, the temperature shall be shown with its corresponding tabulated pressure rating for the material

8.

Ring joint Flanges. The edge (Periphery) of the each ring joint flange shall be marked with the letter R and the Corresponding ring groove number

9.

List of Bolting Specification Refer Table 1B

10. Repair welding of the bolting material is prohibited 11. High strength bolts can be used for any flanged joints for all listed materials and gaskets 12. Intermediate strength can be used for any joint if its ability is checked and found ok ie if it is verified that a sealed joint can be maintained under rated working pressure and temperature 13. Low Strength for class 150 and 300 only ie below 30 ksi

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Southern Inspection Services 14. Fitting Local Areas : Local areas having less than minimum wall thickness are acceptable provided all of the following conditions are met. The area of sub-minimum thickness can be enclosed by a circle whose diameter is no greater than 0.35 √dtm, where d is the tabulated fitting inside diameter (Locate from table of flange fitting) and tm is the minimum wall thickness as shown in the tables listed in para. 6.1.1. – Measured thickness is not less than 0.75 tm. – Enclosure circles are separated from each other by an edge-toedge distance of more than 1.75 √dtm 15. Special Degree Elbows – 1 deg to 45 deg inclusive shall have 45 deg elbow – over 45 deg and up to 90 deg shall have 90 deg elbow – This std permits flat face flanges in all the cases 16. Flange Facing Finish Imperfections Refer Table F3 of Annex F 17. Flanges are not required to be pressure tested. 18. Test Conditions – The shell pressure test for flanged fittings shall be at a pressure no less than 1.5 times the 38ºC (100ºF) pressure rating rounded off to the next higher 1 bar (25 psi) increment. 19. Test Fluid Shall be water which contain Corrosion inhibitor or kerosene as the test fluid. Other suitable test fluids may be used provided their viscosity is not greater than that of water. The test fluid temperature shall not exceed 50ºC (125ºF) is permitted through the pressure boundary wall 20. Test Duration Fitting size For NPS Less than or equal to 2 inch For NPS between 2 ½ in to 8 inch For NPS equal to or more than 10 in ,

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Duration Test duration is 1 minute Test duration is 2 minutes Test duration is 3minutes

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Southern Inspection Services

B 31.3 TIPS for API 570 EXAMS 1. The requirements of the latest edition of ASME Code Section B 31.3 and any subsequent Addenda. are not retroactive & all piping installed per earlier additions need not be upgraded 2. ASME Code is not intended to apply to piping that has been placed in service 3. ASME B31.3 applies to piping for a. Raw, intermediate and finished chemicals b. Petroleum products, fluidised solids and refrigerants 4. B 31.3 is applicable for Gas, steam, air and water 5. FLUID SERVICES Category D Fluid Service: a fluid service in which all the following apply: (1) the fluid handled is nonflammable, nontoxic, and not damaging to human tissues as defined in para. 300.2 (2) the design gage pressure does not exceed 1035 kPa (150 psi) (3) the design temperature is from −29°C (−20°F) through 186°C (366°F) (b) Category M Fluid Service: A fluid service in whichthe potential for personnel exposure is judged to be significant and in which a single exposure to a very small quantity of a toxic fluid, caused by leakage, can produce serious irreversible harm to persons on breathing or bodily contact, even when prompt restorative measures are taken (c) High Pressure Fluid Service: A fluid service for which the owner specifies the use of Chapter IX for piping design and construction; (d) Normal Fluid Service: a fluid service pertaining to most piping covered by this Code, i.e., not subject to the rules for Category D, Category M, or High Pressure Fluid Service 6. may: a term which indicates that a provision is neither required nor prohibited. 7. shall: a term which indicates that a provision is a Code requirement.

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Southern Inspection Services 8. should: a term which indicates that a provision is recommended as good practice but is not a Code requirement 9. Live Loads. These loads include the weight of the medium transported or the medium used for test. Snow and ice loads due to both environmental and operating conditions shall be considered. 10. Dead Loads. These loads consist of the weight of piping components, insulation, and other superimposed permanent loads supported by the piping. 11. Casting Quality Factor : Casting of Gray & Malleable Iron Quality Factor 1 Steel Casings 0.8 For Increased Casting Quality Factor Refer table 3302.3 12. For Weld Joint Quality Factor use Table 302.3.4 13. Design Thickness of the pipes The required thickness of straight sections of pipe shall be determined in accordance with tm = t + c, The minimum thickness T for the pipe selected, considering manufacturer’s minus tolerance, shall be not less than tm. Here c is the sum of the mechanical allowances (thread or groove depth) plus corrosion and erosion allowances. For threaded components, the nominal thread depth (dimension h of ASME B1.20.1, or equivalent) shall apply. For machined surfaces or grooves where the tolerance is not specified, the tolerance shall be assumed to be 0.5 mm (0.02 in.) in addition to the specified depth of the cut. Here For t < D/6, the internal pressure design thickness for straight pipe shall be not less than that calculated in accordance with either Eq. (3a) or Eq. (3b): T = PD/ 2 ( SE + PY) , here D is the Outer Dia If NPS is given find outer dia From schedule table in API 574, , S should be found from the able A1 of 31.3, The table A1 will also Give the MINIMUM impact Curve designation, P no, and the Values of S at different temperature. You can do interpolation with Stress Vs temperature also But for t> or = D/6, or P/SE > 0.385 , the above calculation will not hold good > or = D/6,

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Southern Inspection Services 14. Blanks. The minimum required thickness ofa permanent blank (representative configurations shown in Fig. 304.5.3) shall be calculated in accordance with Eq. (15): Tm = dg x SQ ROOT of { (3P/16SE ) + c} Where c p sum of allowances defined in dg inside diameter of gasket for raised or flat face flanges, or the gasket pitch diameter for ring joint and fully retained gasketed flanges E is efficiency P is design gage pressure S is Stress found from Table A1 15. Socket Welds (a) Socket welded joints should be avoided in any service where crevice corrosion or severe erosion may occur. 16. a) Threaded joints should be avoided in any service where crevice corrosion, severe erosion, or cyclic loading may occur. (b) When threaded joints are intended to be seal welded, thread sealing compound shall not be used. 17. For Maximum thickness of Male threaded components refer to table 314.2.1 18. Poisson’s ratio should be 0.3 19. For a liquid thermal expansion relief device which protects only a blocked-in portion of a piping system, the set pressure shall not exceed the lesser of the system test pressure or 120% of design pressure. 20. Materials of unknown specification shall not be used for pressure-containing piping components. 21. Any carbon steel material may be used to a minimum temperature of -29°C (20°F) for Category D Fluid Service. 22. The Stress Ratio is defined as Nominal pressure stress (based on minimum pipe wall thickness less allowances) divided by S at the design minimum temperature; 23. Impact test specimen : Each set of impact test specimens shall consist of three specimen bars. All impact tests shall be made using standard 10 mm (0.394 in.

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Southern Inspection Services 24. Impact Retests (1) For Absorbed Energy Criteria. When the average value of the three specimens equals or exceeds the minimum value permitted for a single specimen and the value for more than one specimen is below the required average value, or when the value for one specimen is below the minimum value permitted for a single specimen, a retest of three additional specimens shall be made. The value for each of these retest specimens shall equal or exceed the required average value. 25. For exemption Go to Curve 323.2.2A 26. For Minimum temp requirement Go to table 323.2.2A 27. For MDMT Reduction without Impact Testing refer curve 323.2.2B 28. For Minimum required Charpy Impact Value refer to the table 323.3.5 29. Procedure Qualification by Bend Test only. No RT. 30. Each qualified welder and welding operator shall be assigned an identification symbol. 31. Tack welds at the root of the joint shall be made with filler metal equivalent to that used in the root pass. Tack welds shall be made by a qualified welder or welding operator. 32. Peening is prohibited on the root pass and final pass of a weld. 33. Seal Welds. Seal welding shall be done by a qualified welder. Seal welds shall cover all exposed threads. 34. Preheating is used, along with heat treatment, to minimize the detrimental effects of high temperature and severe thermal gradients inherent in welding. 35. Preheat Zone. The preheat zone shall extend at least 25 mm (1 in.) beyond each edge of the weld. When materials having different preheat requirements are welded together, it is recommended that the higher temperature shown in Table 330.1.1 be used.

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Southern Inspection Services 36. For Pre Heat reefer Table 330.1.1 and for Heat treatment refer Table 331.1.1 For high Alloy Feerritic steel Post weld heat treatment is neither required nor prohibited, but any heat treatment applied shall be as required in the material specification. 37. Temperature Verification. Heat treatment temperature shall be checked by thermocouple pyrometers or other suitable methods to ensure that the WPS requirements are met. See para. 330.1.3(b) for attachment of thermocouples by the capacitor discharge method of welding. 38. Hardness Tests. Where a hardness limit is specified in Table 331.1.1, at least 10% of welds, hot bends, and hot formed components in each furnace heat treated batch and 100% of those locally heat treated shall be tested. 39. Partial Heat Treatment. When an entire piping assembly to be heat treated cannot be fitted into the furnace, it is permissible to heat treat in more than one heat, provided there is at least 300 mm (1 ft) overlap between successive heats, and that parts of the assembly outside the furnace are protected from harmful temperature gradients. 40. Bolt Length. Bolts should extend completely through their nuts. Any which fail to do so are considered acceptably engaged if the lack of complete engagement is not more than one thread. 41. The owner’s Inspector shall have not less than 10 years experience in the design, fabrication, or inspection of industrial pressure piping. 42. For defect Acceptance criteria please use Table 341.3.2 and ts Criterion value note 43. The hydrostatic test pressure at any point in metallic piping system shall be as follows: (a) not less than 11⁄2 times the design pressure; (b) for design temperature above the test temperature, the minimum test pressure shall be calculated by Eq. P T = 1.5 x P x St/s where p internal design gage pressure P T minimum test gage pressure S stress value at design temperature (see Table A-1) St stress value at test temperature

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Southern Inspection Services

44. Pressure Relief Device. A pressure relief device shall be provided, having a set pressure not higher than the test pressure plus the lesser of 345 kPa (50 psi) or 10% of the test pressure. 45. Sensitivity of the test shall be not less than 10−3 atm·ml/sec under test conditions. 46. records shall be retained for at least 5 years 47. For Basic casting Quality factor refer Table A-1A 48. For welding Quality Factor refer A -1B 49. For Thermal expansion refer Table C1

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Southern Inspection Services

ASME B 31.3- PRATICE QUESTION CLOSED BOOK 1. The requirements of the latest edition of ASME Code Section B 31.3 and any subsequent Addenda. a. Must be followed explicitly as soon as the latest edition is issued b. Are retroactive and all piping installed per earlier must be upgraded c. Are not retroactive & all piping installed per earlier additions need not be upgraded d. May be used without regard to the acceptability of code revision to the jurisdiction 2. Clauses in the b 31 code are not necessarily numbered consecutively such discontinuities result from. a. The age of the code and the number of changes that have been made. b. Following a common outline, insofar as particle for all Code Sections. c. No particular logic was followed in the original version of the code. d. Practices followed by all codes to make them difficult to reproduce. 3. Who has responsibility of determining which code section is applicable to piping installations i.e .B 31.1 B31.3 ETC ? a. Owner b. Inspector c. Jurisdiction d. Engineer 4. Who has the overall responsibility for compliance with ASME B31.3? a. inspector b. owner c. engineer d. jurisdiction 5. The intent of ASME B 31.3 is to set forth engineering requirements deemed necessary for __________ and ______________ of piping installations. a. Structural design , fabrication b. Safe design , construction c. Adequate fabrication, execution d. Permanent existence, longevity

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Southern Inspection Services 6. ASME Code is not intended to apply to piping a. In the chemical industry b. That has been placed in service c. In the agronomy industry d. In the space industry 7. Compatibility of material with the service and hazards from instability of contained fluids: a. Is covered extensively by ASME 31.3 b. Are not within the scope of ASME B31.3 c. Is addressed on a limited basis by ASME B31.3 d. Is the main scope of ASME B31.1 8. ASME B31.3 applies to piping for all fluid except for which of the below? a. Tubes of fired heaters, plumbing and storm sewers b. Raw, intermediate and finished chemicals c. Petroleum products, fluidized solids and refrigerants d. Gas, steam, air and water 9. A pre-placed filler metal which is completely fused into the bottom of a welded joint and becomes part of the weld is called: a. A depleted appendage b. A pre-placed ligament c. A consumable insert d. A caulked joint 10. Define “face of weld” a. It is the longitudinal view of a weld that has been split down the middle for inspection. b. It is the elevation view of a weld that has been cut out to show its cross section. c. It is the concealed weld surface on the side opposite from which the welding was done. d. It is the exposed surface of a weld on the side from which the welding was done. 11. Fluid service that is non-flammable, non-toxic and not damaging to human tissue and its gauge pressure dose not exceed 150 psi and the design temperature is from -20 degrees through 366 degrees F is know as a category _________ fluid. a. D b. C c. M d. N API 570 - DAY 2

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Southern Inspection Services 12. A fluid service in which the potential for personnel exposure is judged to be significant and in which a single exposure to a very small quantity of a toxic fluid caused by leakage can produce serious irreversible harm to persons on breathing or bodily contact even when prompt restorative measures are taken is know as a category _____________ fluid. a. D b. M c. H d. N 13. A fillet weld whose size is equal to the thickness of the thinner member joined is called: a. A longitudinal fillet weld b. A full fillet weld c. A fillet weld with out backing d. A fillet weld with backing 14. The heating of metal to and holding at a suitable temperature and then cooling at a suitable rate for such purpose as reducing hardness improving machinability facilitating cold working produced a desired microstructure or obtaining desired mechanical physical or other properties is known as: a. Annealing b. Normalizing c. Quenching d. Stress – relieving 15. Piping joint that for the purpose of mechanicals strength or leak resistance or both in which the mechanical strength is developed by threaded grooved rolled flared or flanged pipe ends or by bolt pins toggles or rings and the leak resistance is developed by threads and compounds gaskets rolled ends caulking or machined and mated surface is known as a: a. Bonded joint b. Mechanical joint c. Fused joint d. Juke joint

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Southern Inspection Services 16. The term NPS 6refers to: a. A pipe whose outside diameter is 6.625 b. A pipe whose outside diameter is 6” c. A pipe whose radius is 6” d. A tube whose inside diameter is 6” 17. A pipe produced by piercing a billet followed by rolling or drawing or both is a a. Electrical fusion welded pipe b. Spiral welded pipe c. Seamless pipe d. ERW pipe 18. What is “root opening?” a. It is the gape between flanges left to facilitates the installation of gaskets. b. It is the division between different rods accounting for different metallurgy. c. It is the separation between members to be joined by welding at the root of the joint. d. It is the conjunction of members joined by bonding at the face of the joint 19. A weld intended primarily to provide joint tightness against leakage in metallic piping is known as a: a. Fillet weld. b. Fissure weld. c. Seal weld. d. Caulking weld. 20. A weld made to hold parts of weld men in proper alignment until the final welds are made is known as a: a. Face weld. b. Fissure weld c. Seal weld d. Tack weld 21. The junction between the face of a weld and the base metal is known as: a. Root of the weld b. Face of the weld c. Toe of the weld d. Throat of the weld

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Southern Inspection Services 22. The pressure in a piping system that is the pressure at the most severe condition of coincident internal or external pressure and temperature ( minimum or maximum ) expected during service ( except for allowance for occasional variations of pressure or temperature or both above operating levels which are characteristics of certain service) is known as a. Excursion pressure. b. Test pressure. c. Design pressure. d. Absolute pressure. 23. Piping not protected by a pressure relieving device or that can be isolated from a pressure relieving device shall be designed for at least the: a. Usual pressure that is developed. b. Median pressure that is developed. c. Average pressure that can be developed. d. Highest pressure that can be developed. 24. What might happen to a piping system that has a gas or vapor in it ( like stem ) and it is allowed to cool significantly? a. Nothing will happen. b. The gas or vapor will form a liquid which will not affect the piping system. c. The pressure in the piping system may reduce sufficiently to create a internal vacuum. d. The pressure in the piping system may increase and create an over pressure. 25. What happens to a piping system with fluids in it and the fluids are heated with the system blocked? a. The internal pressure will decrease. b. The internal pressure will increase. c. There will be no change in the system. d. The external pressure will increase. 26. _________________ caused by external or internal conditions (including changes in flow rate, hydraulic shock , liquid or solid flushing , and geysering) shall be taken into account in the design of piping. a. Virtual Kinetics. b. Abnormal potential. c. Normal dynamism. d. Impact forces.

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Southern Inspection Services 27. Loads on a piping system that include the weight of the transported or the medium used for test and snow loads or ice loads are examples of ___________ loads. a. Dead. b. Live. c. Normal. d. Vortex. 28. What can be caused by low operating tempetures, including the chhiling effect of sudden loss of pressure on highly volatile fluids, or in alloy piping the failure to properly post weld heat treat after weld? a. Thermal restrain effect. b. Loss of ductility or reduced ductility. c. Increase in plasticity or deformation. d. Increase in toughness strength. 29. Fillet welds may wary from convex to concave . the size of a fillet weld is based on the theoretical throat, which is ____________ x the length. a. 0.707 b. 0.770 c. 1.414 d. 0.500. 30. In spot radiography (efficiency 0.80) of circumferential butt welds, it is recommended that not less than one shot each ________________ welds for each welder/ operator be completed. a. 5 b. 10 c. 20 d. 30 31. If a requirement is specified in the engineer design, but is not a code requirement, ASME B13.13 states that the requirement______________________. a. May be ignored b. May be optionally applied c. Shall be implemented if only the inspector required it. d. Shall be considered a code requirement. 32. In the question t m = t + c pick the correct definition of the value “ t “. a. Minimum required thickness, including mechanical, corrosion, & erosion allowance. b. Pressure design thickness, as calculated for internal pressure. c. Pipe wall thickness (measured or minimum per purchase specification. API 570 - DAY 2

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Southern Inspection Services d. Minimum design temperature of the pipe. 33. When the services erosive , if there is crevice corrosion present, or if cyclic loading occur, slip-on flanges shall: a. Be bolted together with double nutted machine bolts. b. BE bolted together with machine bolts c. Not be used d. Be double welded. 34. The use of slip-on flanges should be ______________ where many large temperature cycles are expected particularly if the flanges are not insulated. a. Called for. b. Encouraged c. Avoided. d. The first choice. 35. Severe cyclic conditions require the use of: a. Slip- on flanges b. Welding neck flanges c. Socket weld flanges d. Lap joint flanges 36. Bolting having more than ________________ ksi specified minimum yield strength shall not be used for flanged joints rated ASME B16.5 Class 400 and higher a. 35 b. 30 c. 45 d. 40. 37. Tapped holes for pressure retaining bolting in metallic piping components shall be of sufficient depth that the thread engagement will be at least ______________ times the nominal thread diameter. a. 7/8 b. 3/4 c. 5/8 d. ½. 38. What type baking rings shall not be used under severe cyclic conditions?” a. Continuous baking rings b. Split backing rings c. Split-on backing rings API 570 - DAY 2

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Southern Inspection Services d. Consumable backing ring 39. Socket welded joints should be avoided in service where ____________ or __________ occur. a. Crevice corrosion , severe erosion b. Graphitic corrosion, continual fretting c. Plut type dezincification, severe carburization d. Hydrogen attack, sensitization. If crevice corrosion is expected also a) Remove Backing ring b) avoid backing ring, c) Use consumable insert d) Use removable non metallic backing ring 40. Socket welds larger than NPS ________________ shall not be used under severe cyclic. a. ¾ b. 1 c. 1.5 d. 2. 41. Which of the listed item is not a location where fillet welds are permissible? a. Weld of socket weld flange b. Attach a weld neck flange c. Weld of a slip-on flange d. Attach a nozzle reinforcement pad. 42. What type weld is considered to furnish no strength and is only used to prevent leakage of threaded joints? a. Tack weld b. Seal weld c. Fillet weld d. Built weld. 43. Where flanges of different ratings are bolted together: a. The rating of the joint shall not exceed that of the higher rated flange. b. They are not acceptable and one flange shall be changed where they both match. c. The rating of the joint shall not exceed that of the lower rated flange. d. The bolt diameter must be 1/8” less than that required for the lower rated flange. 44. Where a metallic flange is bolted to a non-metallic flange. a. A ring joint type gasket is preferd b. A spiral wound grafoil filled gasket is preferd. c. A Full faced gasket is preferd.

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Southern Inspection Services d. A Grayloc type gasket is preferd. 45. What type of joint should not be used under severe cyclic conditions? a. Welded joints b. Expanded joints c. Flanged joints d. Lap joints 46. Threaded joints should be avoided in any service where: a. Crevice corrosion, severe erosion, or cyclic loadings may occur b. Graphitic corrosion, biological corrosion or ststic loadings may occur c. Graphitization sensitizations, or longitudinal loadings may occur d. Dezincification, hydrolysis, or hoop stress loadings may occur. 47. An inspector is checking threaded joints prior to seal welding them, What is an important item to check? a. Check and make sure all gasket surfaces are covered b. Make sure that thread sealing compound has not been used c. Check the longitudinal loading of the joint d. Make sure that the consumable insert to be used is made from the correct material. Sealing compound should not be used when threads are going to b e seal welded 48. The intentional deformation of piging during assembly to produce a desired initial displacement and stress is known as: a. Hot sprint b. Cold spring c. Post stress d. Displacement. 49. When fitting up a socket weld , the made end is welded in the female socket with a. An approximate 1/32” gap at the base of the joint b. No gap left at the base of the joint c. An approximate 1/16’ gap at the base of the joint d. An approximate 1/8” gap at the base of the joint 50. A weld defect to be repaired shall be removed: a. To the satisfaction ofr the pipe fitter b. To apparently good material c. Until the defect cannot longer be seen d. To sound metal.

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Southern Inspection Services 51. What is acceptable as an alternate heat treatment for B31.3 piping? a. Synthesizing , forging or standardizing b. Pre-heating, peening, or case hardening c. Stress relieving, temperature or peening d. Normalizing, normalizing and tempering or annealing. 52. When an entire piping assembly to be heat treated cannot be fitted into the furnace, it is permissible to heat treat in more than one heat, provided there is at least _________ overlap between successive heats, and that parts of the assembly outside the furnace are protected from harmful temperature gradients. a. 6 inches b. 1foot c. 2 feet d. 3feet. 53. According to B31.3 inspection applies to functions performed a. By a third party inspector or their delegates b. By the owner’s inspector’s or the inspector’s delegates c. By a jurisdictional inspector or their delegates d. By an ASME inspector or their delegates. 54. Who is responsible for verifying that all required examinations and testing have been completed and to inspect the piping to the extent necessary to be satisfied that it conforms to all applicable examination requirements of the ASME B31.1 Code and of the engineering design? a. It is the owner’s responsibility, exercised through his inspector b. It is the API Examiner’s responsibility c. It is the jurisdiction’s inspector’s responsibility d. It is the ASME inspector’s responsibility 55. According to ASME B31.3 how much experience in the design, fabrication, or inspection of industrial pressure piping must a Piping inspector have? a. 10 years b. 8 years c. 6 years d. 5 years

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Southern Inspection Services 56. Prior to initial operation each piping installation, including components and workmanship shall be examined in accordance with ASME B31.3, paragraph 341. When should examination of P-Numbers 3,4 and 5 materials be carried out? a. Examination shall be performed prior to any heat treatments b. Examination shall be performed before heat treatment and after heat treatment c. Examination shall be performed after completion of any heat treatment d. Examination shall be performed on at least 5% of the fabrication after heat treatment Any test including Hydro test should be done only after completing the Heat treatment 57. For normal fluid service, how much of the piping welds (circumferential and miter groove welds) shall be examined by Random RT or random UT a. 3% b. 10% c. 5% d. 33% 58. VT, MT, PT, UT and RT shall be performed as specified in the: a. ASME BPV Code, Section V b. ASME BPV Code, Section IX c. ASME BPV Code, Section VIII d. ASME BPV Code, Section I 59. The extent of radiography when considering longitudinal welds, the minimum requirement is inches of weld length. a. 12 b. 9 c. 6 d. 4 60. Which of the following examination is NOT considered an in-process examination? a. Examination of joint preparation and cleanliness b. Examination of appearance of the finished joint c. Examination of material for toughness. d. It is not in process exam

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Southern Inspection Services 61. What method of in-process examination is used unless additional methods are specified in the engineering design? a. MT b. RT c. UT d. VT 62. What is the only category fluid service that may be subject to an initial in-service leak test? a. Category M b. Category D c. Category N d. Category H 63. Seal weld a) Need not cover all the Exposed threads b) It has to done by a qualified welder c) Has to be qualified by RT d) All e) None 64. For piping with the branched connection Minimum Required thk a) Can be calculated by the Barlow Formula b) You to add the Branch thk with the value calculated from Barlow formula c) By Changing the E value to 0.385 in the Barlow formula , you can get the result d) Consult the Piping engineer 65) Severe Cyclic Condition is a) b) c) d) e)

A condition where Cyclone & Storm affects Where computed Displacement stress range exceeds 0.8 of allowed stress range Where the equivalent number of cycle exceeds 7000 Both b & c All a,b & c

300.2 definition

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Southern Inspection Services

ASME B 31.3- PRATICE QUESTION - CLOSED BOOK ANSWER KEY Q.NO. 1 2 3 4 5 6 7 8 9 10 11 12 13

ANS C B A B B B B A C D A B B

Q.NO. 37 38 39 40 41 42 43 44 45 46 47 48 49

ANS A B A D B B C C B A B B C

14 15 16 17 18 19 20 21 22

A B A C C C D C C

50 51 52 53 54 55 56 57 58

D D B B A A C C A

D C B D B

ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 301.2.1(a) & 302.2.4 ASME B31.3 301.2.2(a) ASME B31.3 301.4.1 ASME B31.3 301.4.2 ASME B31.3 301.5.1 ASME B31.3 301.6.1

23 24 25 26 27

59 60 61 62 63

C C D B B

28 29 30 31 32 33 34 35 36

B A C D B D C B B

ASME B31.3 301.9 ASME B31.3 Fig. 328.5.2A ASME B31.3 341.5.1 ASME B31.3 300(c) (5) ASME B31.3 304.1.2 (b) ASME B31.3 308.2.1 (a) ASME B31.3 308.2.1 (b) ASME B31.3 308.2.4 ASME B31.3 309.2.1

64

D

ASME B31.3 INTRODUCTION ASME B31.3 INTRODUCTION ASME B31.3 INTRODUCTION ASME B31.3 300 (b) (1) ASME B31.3 300 (c) (1) ASME B31.3 300 (c) (2) ASME B31.3 300 (c) (6) ASME B31.3 300.1.1 (b) ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2 ASME B31.3 300.2

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ASME B31.3 309.3 ASME B31.3 311.2.3(b) ASME B31.3 311.2.5a) ASME B31.3 311.2.5 ASME B31.3 311.2.5(a) & (b) ASME B31.3 311.2.6 ASME B31.3 312.1 ASME B31.3 312.2 ASME B31.3 313 ASME B31.3 314(a) ASME B31.3 314(b) ASME B31.3 319.2.4 ASME B31.3 328.5(A) & Fig 328.5.2 B&C ASME B31.3 328.6 ASME B31.3 331.2.1 ASME B31.3 331.2.5 ASME B31.3 340.1 ASME B31.3 340.2 ASME B31.3 340.4(b) ASME B31.3 341.3.1(a) ASME B31.3 341.4.1(b)(1) ASME B31.3 344.2, 344.3, 344.4, 344.5, 344.6 ASME B31.3 344.5.2 ASME B31.3 344.7.1 ASME B31.3 344.7.2 ASME B31.3 345.1(a), 345.7

a) B 31.3, 328.5.3 11.1.1.2 -574

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Southern Inspection Services ASME B 31.3 – PRATICE QUESTIONS 1. What is the minimum wall schedule that can be used in a male threaded joint in normal fluid service, carbon steel (notch-sensitive) and NPS 0.5 and smaller? a. Sch 10 b. Sch 40 c. Sch 80 d. Sch 160 2. What is an example of a straight-threaded joint? a. Threads (male) of thread piping b. Threads (female) on a threaded valve c. An union comprising male and female ends joined with a threaded union nut d. A joint used in instrument tubing 3. Determine the linear expansion (in/100ft) of a carbon steel pipe between 70 degrees F and 450 degrees F a. 3.04” per 100 ft b. 3.39” per 100 ft c. 2.93” per 100 ft d. 3.16” per 100 ft 4. A 20” long carbon steel pipe is heated uniformly to 450 degrees F. from 70 degrees F Determine its length after heating a. 20.052” b. 20.263” c. 20.210” d. 20.250” 5. If 4 materials, carbon steel, 18Chr-8Ni, Monel, Aluminium are heated from 70 degrees F to 550 degrees F which one will expand more? a. 18 Chr-8Ni b. Monel c. Aluminium d. Carbon Steel

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Southern Inspection Services 6. What is the modulus of elasticity of carbon steel material (carbon content 50 ppm. 48. If you expose copper and copper alloys to ammonia, what would this possibly cause? a. embrittlement b. stress corrosion cracking c. hydrogen attack d. sulphidation 49. You have a fluid does not operate at high pressure. The fluid is not toxic. The fluid is not flammable. Exposure to the fluid will not cause damage to human tissue. The design gage pressure is 120 psi and the operating temperature is 100 degree F. The owner requires metal piping to be used and he does not designate the category fluid service would you design? a. Normal fluid service b. Category D fluid service c. Category M fluid service d. High pressure fluid service 50. In elevated temperature service any condition of pressure and temperature under which the design condition are not exceeded is known as the: a. Operating conditions b. Design condition c. Extent of the excursion d. Service life 51. In elevated temperature service a condition under which pressure or temperature or both, exceed the design condition is known as: a. A design condition b. An operating condition c. An excursion d. A duration

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Southern Inspection Services 52. In elevated temperature service a condition under which pressure or temperature or both, exceed the design condition is known as: a. Estimated life b. Service condition c. Equivalent life d. Excursion life 53. The inspector finds that ERW (electrical resistance weld) pipe is used in a piping system. What longitudinal joint factor (Ej) would be used to calculate the required thickness for pressure? a. 0.85 b. 0.60 c. 0.80 d. 0.90 54. The joint factor cannot be increased by additional examination on which of the following longitudinal pipe joint: a. Electric fusion weld, single butt weld, straight or spiral, without filler metal b. Electric fusion weld, double butt weld, straight or spiral c. Electric fusion weld, single butt weld, straight or spiral with filler metal d. Electrical resistance weld, straight or spiral 55. A NPS 10 pipe made from ASTM A 106 Grade B carbon steel is to be checked for minimum thickness (t m ). The pipe operated at 900 degree F. The existing thickness is 0.29”. Determine the co-efficient Y. a. 0.4 b. 0.5 c. 0.6 d. 0.7 56. A NPS 10 pipe made from ASTM A53 Grade B carbon steel is to be checked for thickness (t). The pipe operates at 975 degree F. The existing thickness is 29”. Determine the co-efficient Y. a. 0.4 b. 0.5 c. 0.6 d. 0.7

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Southern Inspection Services 57. “S” is defined as the stress value for material from Table A-1 of ASME B31.3. Pick the value of “S” when the material is ASTM A335 Grade p9 and the temperature is 950 degree F. a. 11400 psi b. 10600 psi c. 7400 psi d. 20000 psi 58. An NPS 12 seamless pipe made from ASTM A-53 Grade B material operates at 600 psi and 600 degree F. Calculate the pressure design thickness for these conditions a. 0.221” b. 0.442” c. 0.205” d. 0.191” 59. An NPS 12 (12.75” o.d) seamless pipe made from ASTM A-53 Grade B material operates at 600 psi and 600 degree F. the conditions required that a corrosion allowance of 0.125” be maintained. Calculate the minimum required thickness for these conditions. a. 0.218” b. 0.346” c. 0.330” d. 0.436” 60. An NPS 4 (4.5” OD) seamless pipe made from ASTM A-106 Grade A material operates at 300 psi and 400 degree F. The pipe must cross a small ditch and it must be capable of supporting itself without any visible sag. A piping Engineer states that the pipe must be atleast 0.25” thick just to support itself and the liquid product. He also states that a 0.10” corrosion allowance must be included. Calculate the thickness required for the pipe. a. 0.292” b. 0.392” c. 0.350” d. 0.142”

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Southern Inspection Services 61. A blank is required between two NPS 8 inch 150 pound class flanges. The maximum pressure in the system is 285 psi at 100 degree F. A corrosion allowance of 0.10” is required. The inside diameter of the gasket surface is 8.25”. the blank is ASTM A-285 Grade C material. Calculate the thickness required for the blank. a. 0.545” b. 0.584” c. 0.530” d. 0.552” 62. Which of the below may only be used for category D fluid service? a. ASTM A-333 Grade 6 b. API 5L Grade X46 c. ASTM A-106 Grade B d. ASTM A-53 Grade F 63. What is the minimum thickness of a blank that is made from A516-60 material (seamless) and is 17.375” I.D? The pressure is 630 psi at 600degree F. Corrosive product will be on both sides of the blank, and the specified corrosion allowance is 1/8”. a. 1.5” b. 1.627” c. 1.752” d. 2.067” 64. Per B 31.3, a piping designer must have _______ years of experience if he has bachelor’s degree in engineering. a. 5 b. 10 c. 15 d. Not specified 65. Using the given formula, calculate the design pressure of a 0.397” replacement pipe (measured thickness) with the following information: i. Material : A672 B 70 ii. Pressure and Temperature: 753 psi at 300 degree F iii. Diameter :NPS 16 iv. Corrosion allowance: 1/16” P = 2 S E (t-c) / D a. b. c. d.

1000 psi 949 psi 942 psi 800 psi

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Southern Inspection Services 66. What is the design pressure allowed on a replacement A-135-A ERW pipe that is NPS 6 (6.625”) and is installed in a system operating at 700 degree F? The pipe is Sch. 80, and the engineering specifications require a 1/16” erosion allowance to be maintained. P = 2 S E (t-c) / D a. 1596 psi b. 1167 psi c. 1367 psi d. 1800 psi 67. What schedule of seamless pipe will be required if a seamless replacement piece is ordered for a piping circuit with the folloeing condition: i. Material : A-106 Grade B ii. Pressure and Temperature : 770 psi at 800 degree F iii. Diameter : NPS 18 iv. Corrosion allowance : 1/8” a. b. c. d.

Sch 40 Sch 60 Sch 80 Sch 140

68. An A 381 Y 35 pipe is 1.0“ thick and is installed in a system operating at 150 psi. A replacement pipe will be ordered and will be the same material (not normalized or quenched/tempered). If the design minimum temperature is 400 degree F and the nominal pressure stress is 10,000 psi, what minimum temperature can this material be operated without impact testing? a. +8 degree F b. -8 degree F c. 68 degree F d. 20 degree F

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Southern Inspection Services ANSWER KEY Q1) Table page 32 Ans C Q2) 314.2.2 page no 32 ans is C Q3) Table C1 page no 212 ans is 3.16 inch D Q4) Table C1, page 212 3.16 inch for 100 feet. So for 20 feet 0.632 inch ie 0.0526 feet . So the answer is 20.052. So ans is A Q5) Naturally Al. anyway you can check from thermal Exp chart for Al as 8.2 inch per 100 feet. Q6) Table C6 , page no 223 ans is 25500. So Ans is A Q7) Chap II , Design, Page no35, 319.3.3 . The ans is 0.3. So ans is A Q8) Chap II , Design322 6.1 C, page 41,Ans is C Q9) Chap II , Design322 6.3 b-2 C, page 41, ans is 120 % Ans is D Q10) Table on page 46 ( ie impact temp table) 15 Deg F . So the answer is B Q11) 323.3.3, Ans 3. So ans is B Q12) Table on page 50, minimum impact Strength. Use table A1 to find tensile strength as 60 Ksi So the ans is 13 ft-Lb. So answer is C Q13) Fig 328.4.3 .30 deg. So ans is D. Q14) Page no 60, 328.5.4.D, Minimum size should be 0.7 times tmin..0.7 x 0.218 = 0.15 inch. So ans is A Q15) Use pre-Heat table on page 63 .For P no refer table A1 and note as P no 1.. So for P no 1 and thk 0.322 inch, pre heat tem is 50 deg F. But it is only recommended. Required means none So Answer may be A. But since temp is less than 32 Deg F Recommendation becomes requirements ( refer 330 1.1) So the Ans is C If thickness is not given and only schedule is given, find the thickness from Schedule table Also Ambient temp should also be considered, If it is less than Zero Deg C then the recommendation becomes requirement Q16) 330.1.4, page no 62 Ans is B

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Southern Inspection Services Q17) Find P no from A1 table as 1 and 5B. So pre heat as respectively 50 Deg F and 350 Deg F. So choose 350 higher. So Ans is D Q18) 331.1.3 0.237 + 0.280 +.250 = 0.767 So the Ans B. Q19) 331.1.3, Do not consider reinforcement thk.so Heat treatment thk is Tb + tr + tc= 0.237” + 0.25” +0.0.280” = 0.767 ie 0.77 So ans is B Q20) Refer ref P no from A1 as 5B and Use Heat treatment table and find Brinel Hardness as as none for thk less than 0.5 inch Refer to the Chromium Content is 9 more than3. So ans is D Q21) 331.1.7 a. So Ans is B Q22) Ans is a Look for P no using A1 table as 4 & 5B respectively. and Use PWHT Table for Brinell hardness as 225 & None because thk is exactly.5 Inch So Ans is d ASME B31.3,331.1.7(b) Q23) Ans is b, ASME B31.3,332.2.1-Page no 67 Q24) Ans is b, ASME B31.3,332.2.1-Page no 67 Q25) Ans is a, ASME B31.3,335.1.(a) page no 67 Q26) Ans is a, ASME B31.3,335.1.(c) Page no 68 Q27) Ans is c, ASME B31.3,335.1.1(c) Page no 68 Q28) Ans is b, ASME B31.3,335.2.3, Page no 68 Q29) Ans is c, ASME B31.3,335.2.4, Page no 68 Q30) Ans is b, ASME B31.3, Table 341.3.2, Refer tables on page 71 & 72 Q31) Ans is b, ASME B31.3, 341.3.4, page 70 Q32) Ans is c, ASME B31.3, 345.2.1 (c) page 77 Q33) Ans is d, ASME B31.3, 345.2.2 (a) page 77 Q34) Ans is c, ASME B31.3, 345.2.2 (b) page 77 Q35) Ans is a, ASME B31.3, 345.4.1 Page no 78

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Southern Inspection Services Q36) Ans is d, ASME B31.3, 345.4.2 (a) Page no 78 Q37) Ans is c, ASME B31.3, 345.4.2 (b) Page no 78 Q38) Ans is b, ASME B31.3, 345.4.3 (b) Page no 78 Q39) Ans is d, ASME B31.3, 345.5.4 Page no 78 Q40) Ans is b, ASME B31.3, 345.8 (a) Page no 79 Q41) Ans is c, ASME B31.3, 346.3 Page no 79 Q42) Ans is c, ASME B31.3, Table A-1B , Page 191 Q43) Ans is b, ASME B31.3, Table A-1A page no 190 Q44) Ans is d, ASME B31.3, Table C-6 page no 222 Q45) Ans is d, ASME B31.3, F308.2 Page no 237 Q46) Ans is b, ASME B31.3, F322.6, Page 237 Q47) Ans is b, ASME B31.3, F323.4(a), Page 238 Q48) Ans is b, ASME B31.3, F323.4(f)(2) Page no 239 Q49) Ans is a, ASME B31.3, Figure M-300 , Page 276 Q50) Ans is a, ASME B31.3, V300.1 Page no 285 Q51) Ans is c, ASME B31.3, V300.1 Page no 285 Q52) Ans is b, ASME B31.3, V300.1, Page no 285 Q53) Ans is a, ASME B31.3, 302.3.4, Page no 15 Q54) Ans is d, ASME B31.3, 302.2.4, Table 302.3.4 314.2.1(a) Page 15 note Q55) Ans is a, ASME B31.3, 304.1.1 (b), Table 304.1.1 , Page 18, please note Ferritic steel is carbon steel

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Southern Inspection Services Q56) Ans is c, ASME B31.3, 304.1.1 (b), Table 304.1.1 , page 18, the value is between 0.5 and 0.7. So you can select 0.6 Q57) Ans is b, ASME B31.3, Refertable A1 Page 155 Q58) Ans is a, ASME B31.3, 304.1.2 (a) , t = PD/2SE, P = 600 psi, D, outer dia= 12.75, E=1 being seamless pipe, S form table on page 147m j m j is 17300 ksi So answer is 0.2210 ie A Q59) Ans is b, add CA with 0.2210 So 0.221 + 0.125 = 0.346 and Hencs Ans is b ASME 31.3, 304.1.2 (a) Q60) Ans is b, ASME 31.3, 304.1.2 (a), Here it is 0.25 + 0.10 +( PD/2SE) here P =is 300, D is 4.5 , E is I, and S is 16000, page no 143. So it is 300 x 4.5/ 32000= 0.04218 + 0.25 =0.1= 0.3921 Q61) Ans is a, ASME 31.3, 304.5.3 t = {Dg x Sq toot ( 3P/16SE )} + CA. So here s from table A1 on page 142 is 18300, E= 1 So Ans is 8.25 x Sq root of{( 3x285)/(16 x 18300)} + .10 = 0.545 Q62) Ans is d, ASME 31.3, 305.2.1 Page no28 Q63) Ans is c, ASME 31.3, 304.5.3 Since corrosive products is on both side add 2 CA. So t = {Dg x Sq toot ( 3P/16SE )} + 2 CA So find S from table on page no 147 as 15800. So ans is 1.502 + 2 x 0.125= 1.752. Q64) Ans is a, ASME 31.3, 301.1, Page no 9 Q65) Ans is c, ASME 31.3/API 570 Table 7-1 S from A1 , Page no 144 is 22500 So P = 2 x 22 500 x ( 0.397- .0625) /16 = 940 psi So ans is C Q66) Ans is c, ASME 31.3/API 570 Table 7-1 S value from table is 14,400 So Ans is = { 2 x 14 400 x 0.85 ( ERW Efficiency table ) x ( 0.432- .0625)}/ 6.625 1366 Psi So ans is C Q67) Ans is b, ASME 31.3, 304.1.2/API 574 Table 1 & Table 3 . So here find Minimum thk and add Ca. Add 2 CA only for finding MAWP So here S is 10800 and Hence t= 770 x 18/ ( 2 x 10800 x1 ) + .125 = 0.76 Look up in ch table for 18 inch. So Scd 60 is 0.750 So is the answer Q68) Ans is c, ASME 31.3, Appendix A, Fig.323.2.A .A 381 y 35 is the Curve A. So look up in Impact table for curve A for 1 inch is 25 degree C or 68 degree F

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Southern Inspection Services 31.3 OPEN QB 1 PWHT is required for all thicknesses of piping over ½ inch for which of the following materials? d. P Nos. 1 and 2 e. P Nos. 1 and 3 f. P Nos. 2 and 3 g. P Nos. 4 and 5 2 NPS 12, Sch 80 and Sch 160 pipes (M.O.C = A 106 gr B) are to be used at –10º C. Determine whether, a. Both pipes require impact testing b. Only Sch 160 will require impact test but Sch 80 would be exempt. c. Both would be exempt d. Sch 80 would require but Sch 160 will be exempt. 3 A 6” NB Sch 40 pipe is selected for following conditions. Design Pr = 360 psi Design Temp. = 300 degrees F M.O.C. = A 53 gr B (ERW) Corrosion Allowance = 2.0 mm Assume standard mill tolerance Your assessment is: a. b. c. d.

Pipe design meets code requirement Pipe design does not meet code requirement Depends on opinion of Piping Inspector Depends on opinion of Piping Design Engineer

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Southern Inspection Services 4 A piping installation was constructed out of material requiring impact testing. Following two steel materials (material A and B) were tested for impact test results. These materials are to be used for repair work on piping. The test data is as follows: Material A:

Material B:

SMTS = 65000 psi (Deoxidized) Reading for specimen (1) = 16.0 ft lb Reading for specimen (2) = 17.5 ft lb Reading for specimen (3) = 9.5 ft lb

SMTS = 60,000 psi (Deoxidized) Reading for specimen (1) = 15.0 ft lb Reading for specimen (2) = 14.0 ft lb Reading for specimen (3) = 10.0 ft lb

a. b. c. d.

Both material (A) and (B) are OK (A) is OK but (B) is not OK (B) is OK but (A) is not OK Both are not OK

5 An austentic stainless steel piping system operates between temperatures of – 50oF and 350oF .The temperature of installation was 100 oF. The approximate values of minimum expansion and contraction range for sliding support installed at 150 ft from the anchored end will respectively be: a. 2.4 inch and 4.3 inch b. 4.3 inch and 2.4 inch c. 1.9 inch and 4.8 inch d. None of the above 6 A flat plate (without joints) is used as permanent blank for flanged point with gasket I.D = 200 mm Design pr. = 200 psi. and safe stress value for plate is 18,000 psi, for given temperature of 250oC, what shall be the minimum blank thickness from given options. Corrosion allowance is Nil code of construction B 31.3? a. 8 mm b. 10 mm c. 12 mm d. 14 mm

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Southern Inspection Services 7 A 106 gr B pipe after installation, required Hydrostatic leak test. Following data is presented Design pr = 300 psi, Design temp = 500ºF. Considering stress at design as well as ambient temperature, determine correct hydrotest pressure if test is carried out at ambient conditions. a. 450 psi b. 476 psi c. 330 psi d. 375 psi 8 Calculate pneumatic test pressure for above piping considering stress correction. a. 349 psi b. 396 psi c. 408 psi d. 330 psi 9 Maximum Brinell hardness observed (after PWHT) on following three joints were as follows: Joint 1: MOC = P No. 4, thk = 16mm, Hardness = 240 HB Joint 2: MOC = P No. 5, thk = 16mm, Hardness = 238 HB Joint 3: MOC = P No. 3, thk = 21 mm, Hardness = 228 HB Your assessment is: a. b. c. d.

All joints are okay as per ASME B 31.3 Joint 2, and 3 are okay, joint 1 not okay Only joint 1 is okay. Joint 2 and 3 are not. None of the above are correct answers.

10 Identify incorrect statement/s: a. In impact test exemption curves, curve D represents better toughness material than curve B b. curve C represents more brittle material than Curve B c. Fully de-oxidized steels are tougher than non-deoxidized materials d. a and c

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Southern Inspection Services 11 An ASTM A53 Grade B pipe with a maximum wall thickness of 0.75” is being considered for use in a cold service. What minimum temperature can it be used and not have an impact test? a. b. c. d.

+20 degrees F +15 degrees F +10 degrees F 0 degrees F

12 PWHT was carried out on 280 welds on pipes of P No 3 material in 2 batches of (A) 200 and (B) 80 respectively. Batch A was carried out in furnace and Batch B by local heat treatment. From batch A, 28 samples and from B batch, 40 samples were tested for Brinnel hardness. And brinnel hardness values were between 208 to 222 HB for batch A while for Batch B it was between 201 to 225 HB.

Your assessment is: a. Batch A: sample size & hardness both not acceptable Batch B: sample size & hardness both OK b. Batch A: sample size & hardness both OK. Batch B: sample size & hardness both OK c. Batch A: sample size inadequate but hardness OK Batch B: sample size adequate but hardness not acceptable d. Batch A: sample size & hardness both OK Batch B: sample size inadequate but hardness OK 13 XXXXXXXXXXXXXX 14 XXXXXXXXXXXXXX

15 A carbon steel ASTM A 53 Grade B material is being impact tested. What is the average energy requirement for this material (average for 3 specimens-fully deoxidized steel)? a. 7 ft-lbs b. 10 ft-lbs c. 13 ft-lbs d. 15 ft-lbs

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Southern Inspection Services 16 Where the design temperature of the system is the same as the hydrostatic test temperature, the hydrostatic test pressure shall not be less than: (Yield stress during hydrotest is not governing factor.) a. that calculated according to ASME Sec. VIII Code b. 1.1 times the design pressure c. 1.25 times the operating pressure d. 1.5 times the design pressure 17 What is the longitudinal weld joint factor, Ej, for API 5L ERW (Electric Resistance Welded) pipe? a. 1.00 b. 0.95 c. 0.85 d. 0.60 18 “S” is defined as the stress value for material from Table A-1 of ASME B31.3. Pick the value of “S” when the material is ASTM A335 Grade P5 and the temperature is 950 degrees F. a. 11,400 psi b. 10,600 psi c. 8,000 psi d. 20,000 psi 19 If a piping system is made up of unknown materials and computations must be made to determine the minimum thickness of the pipe, what can the inspector or the piping engineer do to establish the minimum thickness? a. The lowest grade material and joint efficiency in the applicable code may be assumed for calculations. b. Samples must be taken from the piping and testing for maximum tensile stress and yield strength will determine the allowable stress to be used. c. The piping made of the unknown material must be removed from service and current piping of known material must be installed. d. The piping of unknown material may be subjected to a hydrostatic stress tests while having strain gages on it to determine its yield strength and thus allowable stress.

API 570 - DAY 2

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Southern Inspection Services 20 What is the minimum wall schedule that can be used in a male threaded joint in normal fluid service, carbon steel (notch-sensitive) and NPS 0.5 and smaller? a. Sch 10 b. Sch 40 c. Sch 80 d. Sch 160 21 Determine the linear expansion (in/100ft) of a carbon steel pipe between 70 degrees F and 450 degrees F a. 3.04” per 100 ft b. 3.39” per 100 ft c. 2.93” per 100 ft d. 3.16” per 100 ft 22 What is the modulus of elasticity of carbon steel material (carbon content