CWI Test

Term

Definition

The effective throat of a complete penetration groove weld shall be Term

The thickness of the thinner part joined

Definition

When welding lengthwise connecting two round bars, the proper symbol would be Term

Flare V Groove weld

Definition

Fillet welds may be used to connect skewed T joints provided the plates are set at an angle of not less than Term

30°

Definition

The minimum thickness for a plug weld in material 1" thick shall be Term

5/8"

Definition

Welding shall not be done when:

Term

When ambient temperature is lower than 0°F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to inclement conditions. Definition

When ambient temperature is lower than 0°F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to inclement conditions. Term

AWSA5.17 & A5.23

Definition

When welding 5/16" plate in the field, a welder must be certified for Term

Structural

Definition

Re-entrant copes shall have a minimum radius of: Term

1" Definition

Where tight fit of intermediate stiffeners is specified, it shall be defined as allowing a gap of up to Term

1/16"

Definition

Spatter is caused by Term

Welding current too high or arc length too long Definition

In order to insure sound welds at the ends of a joint. The following shall be used Term

Extension bars & runoff plates

Definition

In repairing cracks in a weld, remove the crack and sound weld metal how far beyond each end of the crack Term

2"

Definition

The removal of slag from a deposited weld bead is: Term

Mandatory

Definition

What electrodes have low hydrogen coating? Term

Electrodes ending 5, 6, or 8. Definition

With which process would an ER70S-X electrode be used Term

GMAW

Definition

Oven storage of low hydrogen electrodes is: Term

To avoid damage by atmospheric moisture Definition

Welded joints not pre-qualified shall be: Term

Qualified Definition

Welder certification may be waived by Term

No one Definition

Peening is not permitted on

Term

Root and surface layers of welds 5.27 Definition

The suggested minimum nominal thickness of backing bars for SMAW process is Term

3/16

Definition

Pre-heat and interpass temperatures must be sufficient to Term

Prevent crack formation

Definition

Low hydrogen electrodes exposed to the atmosphere for longer periods then that permitted by codes shall be £ redried no more than Term

The minimum effective length of a fillet weld shall be: Term

Caulking of welds; What is it and is it permitted

One time

Definition

Overall length of full size fillet including boxing

Definition

Caulking of welds is to plastically deform weld or

base metal surfaces to seal or obscure discontinuities as undercut, piping porosity, pin holes, cracks, etc. Caulking is not permitted on most metals. Term

Definition

In gas metal arc welding the electrode is: Term

Consumable Definition

The effective area of a fillet weld is: Term

The effective weld length X the effective throat. Definition

The minimum length of an intermittent fillet weld shall be: Term

1 1/2"

Definition

The 'U' in joint designation TC-U9a refers to: Term

Metal thickness, U = Unlimited Definition

Arc strikes outside the area of permanent welds should be: Term

Avoided

Definition

Base metal specification may be found in: Term

ASTM Definition

Information regarding back gouging of roots in a single bevel groove weld without backing is found in footnote section: Term

Note 4

Definition

What is the required root opening for the SMA welded CJP single-U-groove weld: Term

When spacers are used in the double-bevel groove weld, the weld is not to be complete until: Term

0 to 1/8"

Definition

Spacer removed by gouging to sound metal before welding second side. Definition

The size of the spacer for double-V groove weld using a 30° bevel and welded in the overhead position shall be: Term

What is the required root opening for a single-Vgroove weld to a back-up strip welded in the vertical position

1/8" X 3/8"

Definition

1/2"

at 20° angle: Term

Definition

A single J-groove weld preparation in the horizontal position shall be made with SMAW & groove angle of: Term

45°

Definition

What is the root opening for a partial joint penetration square groove weld butt joint of material 1/4" thick: Term

1/8"

Definition

A break in the arrow shaft in the symbol in the single bevel groove weld indicates: Term

Which plate to chamfer

Definition

What is the maximum base metal thickness in a single bevel groove weld: Term

U = Unlimited

Definition

What is the included angle of preparation for the double-V-groove weld. Using a spacer and a 1/2" root Term

20°

Definition

In an E70 1 8 electrode, what does the E designate Term

Electrode Definition

Before welding a joint, the surfaces to be welded shall be free of what? Term

Scale, slag, rust, moisture, grease, etc.

Definition

If a welder is qualified by testing in 3/8 inch thick tubular structural steel in the 6-GR position CJP using a E701 8 electrode, is the welder qualified to weld a PJP on 1 inch thick Structural Steel plate in the vertical down position? Term

NO

Definition

It is usually good practice to oscillate which of the mild steel SMAW electrodes Term

E6010 & E6011

Definition

The E7024 electrode may be used in what positions?

Flat and horizontal

Term

Definition

Which of the SMAW electrodes has an iron powder covering? Term

Electrodes with last digit "4"

Definition

Which of the SMAW electrodes has an iron powder and low-hydrogen covering? Term

Electrodes with last digit "8"

Definition

Which welding process would an E7018 electrode be used with? Term

SMAW

Definition

Which welding process would an E70T-X electrode be used with? Term

FCAW

Definition

Single bevel groove, with 45° angle and backing, the root opening must be what? Term

1/4"

Definition

The maximum size of a fillet weld in the flat position, and in one pass shall be how much? Term

3/8"

Definition

Continuous solid wire electrode ( E70S-X ) used in semi-automatic welding would be used in which process? Term

GMAW

Definition

Members distorted by welding may be straightened by application of limited amounts of localized heat. The temperature of heated areas as measured by approved methods shall not exceed how much for Quenched and tempered ( Q. & T.) steel nor how much for other steels.? Term

Q&T1100°F, Other 1200°F

Definition

What is the minimum thickness of material to be used for weld washers? Term

When parts are to be fillet welded, in a lap joint of material under 3" thick the allowable separation of faying surfaces shall not exceed how much?

0.05"

Definition

3/16" Max

Term

Definition

The maximum size electrode allowed for the root pass of an overhead fillet weld is what diameter? Term

5/32"

Definition

What is the maximum permitted carbon equivalent for reinforcing steel that may be welded without prior qualification tests? Term

0.65 %

Definition

The first 7 in the E71T-7 designates what? Term

The tensile strength in 10,000's of psi Definition

The last digit "7" in E7027 designates what?

Term

Type of flux coating on electrode - Iron powder / Iron oxide; & type of current used - AC or DCEN. Definition

When welding a flat fillet root pass, the largest allowable electrode is what diameter? Term

3/16"

Definition

The "S" in E70S-3 designates what? Term

GMAW - Solid wire electrode Definition

The digit "1" in E7018 indicates that welding is to be in what positions? Term

All positions

Definition

Which of the SMAW electrodes has an iron powder and iron oxide covering? Term

SMAW mild steel electrodes where last digit is "7", ie. E6027 Definition

The E6011 electrode will give more penetration than all other SMAW electrodes except what? Term

E6010only

Definition

The "60" in E6011 indicates what Term

60,000 psi Tensile strength Definition

The effective throat thickness of a fillet weld is computed by measuring the shortest distance between what two points? {AW Term

Low hydrogen shielded metal arc electrodes shall

The root to the face

Definition

4 hours

be protected from moisture. The E70XX low hydrogen electrodes shall be returned to an oven within what period of time? Term

Definition

In butt weld root pass in the horizontal position,the thickness of weld metal that may be built up behind the advancing arc shall be how large? Term

5/16"

Definition

Between "Structural Welding Code - Steel" Dl.l and "Structural Welding Code - Sheet Steel" D1.3, there is M a metal thickness overlap of the minimum for Dl.l and the maximum for D1.3. How much overlap of metal thickness is there? Term

0.055 = approx. 1/16 inch.

Definition

Even if prior qualification is made, what is the maximum permitted carbon equivalent for reinforcing steel that is to be welded? Term

0.75%

Definition

In which positions is 1/2" the maximum size allowed for a fillet weld made in one pass? Term

Vertical

Definition

Using DC straight polarity, the electrode is which; . . . . positive, negative or neutral Term

Negative

Definition

The minimum preheat and interpass temperature for ASTM A572 grade 60 structural steel 2" thick welded with ™ SMAW process is how much? Term

225°F

Definition

The minimum preheat and interpass temperature for structural steel 1/2" welded with the SMAW process and an electrode other than Low Hydrogen is how much? Term

The largest electrode permitted when welding in

32°F

Definition

5/16"

the flat position is what diameter Term

Definition

E7018 electrodes are used with what type of welding current Term

AC & DCEP

Definition

Should back-up strips or bars be removed from all welds? Explain Term

No; Not mandatory but permissible

Definition

Shielded metal arc electrodes with low hydrogen covering shall be kept dry in storage ovens. Low hydrogen electrodes of the E80XX series when taken from the oven shall be used within what period of time? Term

2 hours

Definition

Except for root pass, the largest electrode permitted for out of position welding is what diameter Term

1/4

Definition

Reverse polarity means that the electrode is which; .. . positive, negative or netural ? Term

Positive

Definition

What does "CJP" in the tail specifications part of a weld symbol mean? Term

Complete Joint Penetration

Definition

What kind of metal is classified as 6061-T6? Term

Aluminum Definition

Safety precautions shall conform to the latest edition of what specification published by the American Welding Society? Term

ANSI/AWSZ49.1

Definition

If the tensile strength of a single pass weld made with an E6010 electrode is 60,000 p.s.i. what would the tensile strength of a six pass weld be? Term

The amount of lap required for a fillet welded lap joint shall be at least five times the thickness of the thinner

60,000 psi

Definition

1 inch

plate not less than how much? Term

Definition

Backing strips are used to prevent melting through roots of grooves welds by using what for backing material? Term

Metal, weld metal, carbon,flux, gas, glass tape, etc.

Definition

The minimum angle of the plates in a skewed T joint, to be welded with fillet weld, shall not be less than how many degrees to be considered as effective in transmitting applied force? Term

30°

Definition

The minimum thickness of a plug or slot weld in 3/8" plate is how much? Term

3/8"

Definition

The largest size of crater permitted and left at the end of a weld is how much? Term

No crater of any size is allowed

Definition

A fillet weld when measured for size shall be measured how? Term

Leg length of the largest inscribed isosceles rt. triangle Definition

what are the education and experience requirements for a CWI? CAWI?

Term

CWI: 5 years experience, or 3 years & a technical degree; CAWI: 2 years experience, or 6 months & a technical degree Definition

welding inspectors can be categorized how?

Term

1) code or governing body; 2) purchaser's, customer's, or owner's (QA); 3) fabricator's, manufacturer's, or contractor's (QC); 4) architect's or engineer's Definition

what document(s) cover(s) safety in welding and cutting? Term

ANSI Z49.1

Definition

which is most general of the following terms: code, standard, specification? Term

standard

Definition

ASME B31.1 & B31.3 cover what subjects?

B31.1 covers pressure vessels and power piping, B31.3 covers chemical process piping

Term

Definition

Interpass temperatures are measured what distance from the joint? Term

1"

Definition

What topics are covered by ASME Boiler and Pressure Vessel Code sections V, VIII, & IX?

Term

V covers nondestructive examination; VIII covers Unfired Pressure Vessels, and IX covers Welding and Brazing Qualifications Definition

In structural applications, when the metal thickness is less than 1/8", what AWS code applies? Term

AWS D1.3 - sheet metal

Definition

Fillet welds may be measured using a tolerance of :____ Term

-1/32"

Definition

is the name of the document that prescribes the details of how a weld must be performed. Term

WPS - Welding Procedure Specification

Definition

When it is impractical for the welding inspector t witness all tests and observe all welds during production, what kind of inspection results? Term

random-partial

Definition

the welding inspector is responsible for judging acceptability of a product in accord with what? Term

a written document

Definition

which code choices are available for taking AWS QC1 CWI/CAWI exams?

Term

AWS D1.1; API 1104; AWS D1.2 (structural aluminum); AWS D1.5 (Bridge); AWS D15.1 (Railroad); ASME VII & IX; ASME IX, B31.1, & B31.3 Definition

AWS D1.1 specifies that nondestructive testing must be performed by an individual qualified in accordance with what document? Term

SNT-TC-1a

Definition

ASME B31.1 & B31.3 cover what subjects?

Term

B31.1 covers pressure vessels and power piping, B31.3 covers chemical process piping Definition

Interpass temperatures are measured what distance from the joint?

1"

Term

Definition

welding symbols are defined in what publication? Term

AWS A2.4 Definition

What topics are covered by ASME Boiler and Pressure Vessel Code sections V, VIII, & IX?

Term

V covers nondestructive examination; VIII covers Unfired Pressure Vessels, and IX covers Welding and Brazing Qualifications Definition

In structural applications, when the metal thickness is less than 1/8", what AWS code applies? Term

which code choices are available for taking AWS QC1 CWI/CAWI exams?

Term

AWS D1.3 - sheet metal

Definition

AWS D1.1; API 1104; AWS D1.2 (structural aluminum); AWS D1.5 (Bridge); AWS D15.1 (Railroad); ASME VII & IX; ASME IX, B31.1, & B31.3 Definition

for fillet welds on material greater than 1" thick or greater, what is the allowable undercut? Are there exceptions? Term

1/16", no exceptions

Definition

in cases of dispute over welding terms, what document prevails? Term

AWS A3.0

Definition

the standard describing the requirements for welding cross-country pipeline is: Term

API 1104

Definition

acetylene becomes unstable above what pressure? Term

15psi Definition

safety training is mandated under the provisions of what agency? Term

OSHA

Definition

Name the ending numbers in the classification E70XX for low hydrogen SMAW electrodes Term

Name the position numbers in the classification of E-70XX SMAW electrodes Term

70X5, 70X6, 70X8

Definition

701X is all positions, 702X is flat and horizontal only Definition

T or F: according to AWS D1.1, steel backing on groove welds must be continuous. Term

TRUE

Definition

At what level are currents considered "primary shock currents" and hence dangerous? Term

6mA

Definition

what is the most common ASTM structural steel? What is its minimum yield strength? What is its minimum Ultimate Tensile Strength (UTS)? Term

AWS D1.1 states that all surfaces to be welded and surfaces adjacent must be free from what elements? Term

A-36, 36ksi (36,000 psi), and 58ksi

Definition

thick scale, slag, moisture, rust, grease, and other foreign material. Paint & mill scale (not loose or thick) are acceptable Definition

what is the numerical designation for the AWS filler metal specification "Carbon Steel Covered Arc Welding Electrodes"? Term

A5.1

Definition

what is the numerical designation for the AWS filler metal specification "Low Alloy Steel Covered Arc Welding Electrodes"? Term

A5.5

Definition

The American Welding Society certifies welding inspectors according to what document? Term

what topics do the sections of AWS D1.1 cover?

Term

what are the two kinds of welding inspectors defined by the AWS D1.1? What are their roles? Term

"Authorized Inspector" is a term associated with what? By what organization are they certified?

Term

AWS QC1

Definition

1) General Requirements; 2) Design of Welded Connections; 3) Prequalification of WPSs; 4)Qualification; 5) Fabrication; 6) Inspection; 7) Stud Welding; 8) Strengthening and Repair of Existing Structures Definition

Fabrication/Erection (QC), and Verification (QA)

Definition

an "Authorized Inspector" is one who has bottom-line QC responsibility; they are certified by the National Board of Boiler and Pressure Vessel Inspectors Definition

How often are new editions of the AWS AD1.1 published? Term

every 2 years

Definition

what does the "Code of Ethics" of the AWS QC1 consider to be the most important obligation of a welding inspector Term

public safety

Definition

what is a MTR? Term

Material Test Report Definition

For material less than 1" thick what is the maximum allowable undercut in a fillet weld? Are there exceptions? Term

1/32" exception: up to 1/16" for any accumulated length up to 2" in 12"

Definition

the term "Contract Documents" refers to what?

Term

1) all applicable codes; 2) the (structural) plans; 3) the specifications Definition

what is a specification?

Term

a document that describes the requirements for a particular object or component Definition

what is a weld discontinuity?

Term

an interruption in the typical structure of the material Definition

what is a weld defect?

Term

a discontinuity or discontinuities that render a product unacceptable Definition

what is an RFI? Term

Request For Information Definition

the maximum atmospheric exposure time allowed by AWS D1.1 for E-7018 electrodes is what? Term

4 hours

Definition

According to AWS D1.1, the separation between faying surfaces of butt joints landing on a backing bar cannot exceed what amount? Term

1/16"

Definition

what is the national organization for concrete and soils technicians? Term

ASCET

Definition

under the provisions of AWS D1.1, who is ultimately and legally responsible for assuring that the welders are certified? Term

the contractor

Definition

most often, preheat and interpass temperatures are measured using what? Term

temperature-indicating crayons (also contact pyrometer) Definition

when the base metal must be preheated prior to welding, AWS D1.1 specifies that the arts must be heated to the required minimum for at least how far in all directions prior to welding? Term

3" (or thickness of material, whichever is greater))

Definition

ASTM is an abbreviation for what? Term

American Society for Testing and Materials Definition

once removed from their original containers, AWS D1.1 requires that low-hydrogen electrodes be maintained in electrode ovens at what minimum temperature? Term

250°F

Definition

What is an ITL? Term

A CWI or CAWI must have passed what eye test(s)?

Independent Testing Laboratory Definition

20/40 with or without correction and Jaeger J-2 at 12" near vision acuity (color test may be required by employer, but is not required by AWS)