cwi test flashcards
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CWI TEST Flashcards
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CWI TEST
D1.1 and CWI Test
146
11/30/2011
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Term
The effective throat of a complete penetrationgroove weld shall be
Definition
The thickness of the thinner part joined
Term
When welding lengthwise connecting two roundbars, the proper symbol would be
Definition
Flare V Groove weld
Term
Fillet welds may be used to connect skewed Tjoints provided the plates are set at an angle of
not less than
Definition
30
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CWI TEST Flashcards
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Term
The minimum thickness for a plug weld in material1" thick shall be
Definition
5/8"
Term
Welding shall not be done when:
Definition
When ambient temperature is lower than 0F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to in-
clement conditions.
Term
When ambient temperature is lower than 0F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to in-
clement conditions.
Definition
AWSA5.17 & A5.23
Term
When welding 5/16" plate in the field, a weldermust be certified for
Definition
Structural
Term
Re-entrant copes shall have a minimum radius of:
Definition
1"
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CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
Where tight fit of intermediate stiffeners isspecified, it shall be defined as allowing a gap of
up to
Definition
1/16"
Term
Spatter is caused by
Definition
Welding current too high or arc length too long
Term
In order to insure sound welds at the ends of ajoint. The following shall be used
Definition
Extension bars & runoff plates
Term
In repairing cracks in a weld, remove the crackand sound weld metal how far beyond each end of
the crack
Definition
2"
Term
The removal of slag from a deposited weld beadis:
Definition
Mandatory
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CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
What electrodes have low hydrogen coating?
Definition
Electrodes ending 5, 6, or 8.
Term
With which process would an ER70S-X electrodebe used
Definition
GMAW
Term
Oven storage of low hydrogen electrodes is:
Definition
To avoid damage by atmospheric moisture
Term
Welded joints not pre-qualified shall be:
Definition
Qualified
Term
Welder certification may be waived by
Definition
No one
-
CWI TEST Flashcards
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Term
Peening is not permitted on
Definition
Root and surface layers of welds5.27
Term
The suggested minimum nominal thickness ofbacking bars for SMAW process is
Definition
3/16
Term
Pre-heat and interpass temperatures must besufficient to
Definition
Prevent crack formation
Term
Low hydrogen electrodes exposed to theatmosphere for longer periods then that permitted
by codes shall be redried no more than
Definition
One time
Term
The minimum effective length of a fillet weld shallbe:
Definition
Overall length of full size fillet including boxing
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
Caulking of welds; What is it and is it permitted
Definition
Caulking of welds is to plastically deform weld orbase metal surfaces to seal or obscure
discontinuities as undercut, piping porosity, pinholes,
cracks, etc. Caulking is not permitted on mostmetals.
Term
In gas metal arc welding the electrode is:
Definition
Consumable
Term
The effective area of a fillet weld is:
Definition
The effective weld length X the effective throat.
Term
The minimum length of an intermittent fillet weldshall be:
Definition
1 1/2"
Term
The 'U' in joint designation TC-U9a refers to:
Definition
Metal thickness, U = Unlimited
-
CWI TEST Flashcards
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Term
Arc strikes outside the area of permanent weldsshould be:
Definition
Avoided
Term
Base metal specification may be found in:
Definition
ASTM
Term
Information regarding back gouging of roots in asingle bevel groove weld without backing is found
in footnotesection:
Definition
Note 4
Term
What is the required root opening for the SMAwelded CJP single-U-groove weld:
Definition
0 to 1/8"
Term
When spacers are used in the double-bevelgroove weld, the weld is not to be complete until:
Definition
Spacer removed by gouging to sound metal be-fore welding second side.
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The size of the spacer for double-V groove weldusing a 30 bevel and welded in the overhead
position shall be:
Definition
1/8" X 3/8"
Term
What is the required root opening for a single-V-groove weld to a back-up strip welded in the
vertical positionat 20 angle:
Definition
1/2"
Term
A single J-groove weld preparation in thehorizontal position shall be made with SMAW &
groove angle of:
Definition
45
Term
What is the root opening for a partial jointpenetration square groove weld butt joint of
material 1/4" thick:
Definition
1/8"
Term
A break in the arrow shaft in the symbol in thesingle bevel groove weld indicates:
Definition
Which plate to chamfer
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CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
What is the maximum base metal thickness in asingle bevel groove weld:
Definition
U = Unlimited
Term
What is the included angle of preparation for thedouble-V-groove weld. Using a spacer and a 1/2"
root
Definition
20
Term
In an E70 1 8 electrode, what does the E designate
Definition
Electrode
Term
Before welding a joint, the surfaces to be weldedshall be free of what?
Definition
Scale, slag, rust, moisture, grease, etc.
Term
If a welder is qualified by testing in 3/8 inch thicktubular structural steel in the 6-GR position CJP
using aE701 8 electrode, is the welder qualified to weld aPJP on 1 inch thick Structural Steel plate in the
vertical downposition?
Definition
NO
-
CWI TEST Flashcards
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Term
It is usually good practice to oscillate which of themild steel SMAW electrodes
Definition
E6010 & E6011
Term
The E7024 electrode may be used in whatpositions?
Definition
Flat and horizontal
Term
Which of the SMAW electrodes has an ironpowder covering?
Definition
Electrodes with last digit "4"
Term
Which of the SMAW electrodes has an ironpowder and low-hydrogen covering?
Definition
Electrodes with last digit "8"
Term
Which welding process would an E7018 electrodebe used with?
Definition
SMAW
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CWI TEST Flashcards
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Term
Which welding process would an E70T-Xelectrode be used with?
Definition
FCAW
Term
Single bevel groove, with 45 angle and backing,the root opening must be what?
Definition
1/4"
Term
The maximum size of a fillet weld in the flatposition, and in one pass shall be how much?
Definition
3/8"
Term
Continuous solid wire electrode ( E70S-X ) used insemi-automatic welding would be used in which
process?
Definition
GMAW
Term
Members distorted by welding may bestraightened by application of limited amounts of
localized heat. Thetemperature of heated areas as measured by
approved methods shall not exceed how much forQuenched and
tempered ( Q. & T.) steel nor how much for othersteels.?
Definition
Q&T1100F, Other 1200F
-
CWI TEST Flashcards
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Term
What is the minimum thickness of material to beused for weld washers?
Definition
0.05"
Term
When parts are to be fillet welded, in a lap joint ofmaterial under 3" thick the allowable separation of
fayingsurfaces shall not exceed how much?
Definition
3/16" Max
Term
The maximum size electrode allowed for the rootpass of an overhead fillet weld is what diameter?
Definition
5/32"
Term
What is the maximum permitted carbon equivalentfor reinforcing steel that may be welded without
prior qualificationtests?
Definition
0.65 %
Term
The first 7 in the E71T-7 designates what?
Definition
The tensile strength in 10,000's of psi
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The last digit "7" in E7027 designates what?
Definition
Type of flux coating on electrode - Iron powder /Iron oxide; & type of current used - AC or
DCEN.
Term
When welding a flat fillet root pass, the largestallowable electrode is what diameter?
Definition
3/16"
Term
The "S" in E70S-3 designates what?
Definition
GMAW - Solid wire electrode
Term
The digit "1" in E7018 indicates that welding is tobe in what positions?
Definition
All positions
Term
Which of the SMAW electrodes has an ironpowder and iron oxide covering?
Definition
SMAW mild steel electrodes where last digit is"7", ie. E6027
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The E6011 electrode will give more penetrationthan all other SMAW electrodes except what?
Definition
E6010only
Term
The "60" in E6011 indicates what
Definition
60,000 psi Tensile strength
Term
The effective throat thickness of a fillet weld iscomputed by measuring the shortest distance
between what twopoints?
{AW
Definition
The root to the face
Term
Low hydrogen shielded metal arc electrodes shallbe protected from moisture. The E70XX low
hydrogen electrodesshall be returned to an oven within what period of
time?
Definition
4 hours
Term
In butt weld root pass in the horizontalposition,the thickness of weld metal that may be
built up behind the ad- vancing arc shall be how large?
Definition
5/16"
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
Between "Structural Welding Code - Steel" Dl.l and"Structural Welding Code - Sheet Steel" D1.3,
there is Ma metal thickness overlap of the minimum for Dl.land the maximum for D1.3. How much overlap of
metalthickness is there?
Definition
0.055 = approx. 1/16 inch.
Term
Even if prior qualification is made, what is themaximum permitted carbon equivalent for
reinforcing steel that is to be welded?
Definition
0.75%
Term
In which positions is 1/2" the maximum sizeallowed for a fillet weld made in one pass?
Definition
Vertical
Term
Using DC straight polarity, the electrode is which;. . . . positive, negative or neutral
Definition
Negative
Term
The minimum preheat and interpass temperaturefor ASTM A572 grade 60 structural steel 2" thick
welded with SMAW process is how much?
Definition
225F
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The minimum preheat and interpass temperaturefor structural steel 1/2" welded with the SMAW
process andan electrode other than Low Hydrogen is how
much?
Definition
32F
Term
The largest electrode permitted when welding inthe flat position is what diameter
Definition
5/16"
Term
E7018 electrodes are used with what type ofwelding current
Definition
AC & DCEP
Term
Should back-up strips or bars be removed from allwelds? Explain
Definition
No; Not mandatory but permissible
Term
Shielded metal arc electrodes with low hydrogencovering shall be kept dry in storage ovens. Low
hydrogenelectrodes of the E80XX series when taken from
the oven shall be used within what period of time?
Definition
2 hours
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
Except for root pass, the largest electrodepermitted for out of position welding is what
diameter
Definition
1/4
Term
Reverse polarity means that the electrode iswhich; .. . positive, negative or netural ?
Definition
Positive
Term
What does "CJP" in the tail specifications part ofa weld symbol mean?
Definition
Complete Joint Penetration
Term
What kind of metal is classified as 6061-T6?
Definition
Aluminum
Term
Safety precautions shall conform to the latestedition of what specification published by the
American WeldingSociety?
Definition
ANSI/AWSZ49.1
-
CWI TEST Flashcards
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Term
If the tensile strength of a single pass weld madewith an E6010 electrode is 60,000 p.s.i. what would
the tensilestrength of a six pass weld be?
Definition
60,000 psi
Term
The amount of lap required for a fillet welded lapjoint shall be at least five times the thickness of
the thinnerplate not less than how much?
Definition
1 inch
Term
Backing strips are used to prevent meltingthrough roots of grooves welds by using what for
backing material?
Definition
Metal, weld metal, carbon,flux, gas, glass tape,etc.
Term
The minimum angle of the plates in a skewed Tjoint, to be welded with fillet weld, shall not be
less than howmany degrees to be considered as effective in
transmitting applied force?
Definition
30
Term
The minimum thickness of a plug or slot weld in3/8" plate is how much?
Definition
3/8"
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The largest size of crater permitted and left at theend of a weld is how much?
Definition
No crater of any size is allowed
Term
A fillet weld when measured for size shall bemeasured how?
Definition
Leg length of the largest inscribed isosceles rt.triangle
Term
what are the education and experiencerequirements for a CWI? CAWI?
Definition
CWI: 5 years experience, or 3 years & a technicaldegree; CAWI: 2 years experience, or 6 months &
a technical degree
Term
welding inspectors can be categorized how?
Definition
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'sor engineer's
Term
what document(s) cover(s) safety in welding andcutting?
Definition
ANSI Z49.1
-
CWI TEST Flashcards
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Term
which is most general of the following terms:code, standard, specification?
Definition
standard
Term
ASME B31.1 & B31.3 cover what subjects?
Definition
B31.1 covers pressure vessels and power piping,B31.3 covers chemical process piping
Term
Interpass temperatures are measured whatdistance from the joint?
Definition
1"
Term
What topics are covered by ASME Boiler andPressure Vessel Code sections V, VIII, & IX?
Definition
V covers nondestructive examination; VIII coversUnfired Pressure Vessels, and IX covers Welding
and Brazing Qualifications
Term
In structural applications, when the metalthickness is less than 1/8", what AWS code
applies?
Definition
AWS D1.3 - sheet metal
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
Fillet welds may be measured using a tolerance of:____
Definition
-1/32"
Term
is the name of the document that prescribes thedetails of how a weld must be performed.
Definition
WPS - Welding Procedure Specification
Term
When it is impractical for the welding inspector twitness all tests and observe all welds duringproduction, what kind of inspection results?
Definition
random-partial
Term
the welding inspector is responsible for judgingacceptability of a product in accord with what?
Definition
a written document
Term
which code choices are available for taking AWSQC1 CWI/CAWI exams?
Definition
AWS D1.1; API 1104; AWS D1.2 (structuralaluminum); AWS D1.5 (Bridge); AWS D15.1
(Railroad); ASME VII & IX; ASME IX, B31.1, &B31.3
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
AWS D1.1 specifies that nondestructive testingmust be performed by an individual qualified in
accordance with what document?
Definition
SNT-TC-1a
Term
ASME B31.1 & B31.3 cover what subjects?
Definition
B31.1 covers pressure vessels and power piping,B31.3 covers chemical process piping
Term
Interpass temperatures are measured whatdistance from the joint?
Definition
1"
Term
welding symbols are defined in what publication?
Definition
AWS A2.4
Term
What topics are covered by ASME Boiler andPressure Vessel Code sections V, VIII, & IX?
Definition
V covers nondestructive examination; VIII coversUnfired Pressure Vessels, and IX covers Welding
and Brazing Qualifications
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
In structural applications, when the metalthickness is less than 1/8", what AWS code
applies?
Definition
AWS D1.3 - sheet metal
Term
which code choices are available for taking AWSQC1 CWI/CAWI exams?
Definition
AWS D1.1; API 1104; AWS D1.2 (structuralaluminum); AWS D1.5 (Bridge); AWS D15.1
(Railroad); ASME VII & IX; ASME IX, B31.1, &B31.3
Term
for fillet welds on material greater than 1" thick orgreater, what is the allowable undercut? Are there
exceptions?
Definition
1/16", no exceptions
Term
in cases of dispute over welding terms, whatdocument prevails?
Definition
AWS A3.0
Term
the standard describing the requirements forwelding cross-country pipeline is:
Definition
API 1104
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
acetylene becomes unstable above whatpressure?
Definition
15psi
Term
safety training is mandated under the provisionsof what agency?
Definition
OSHA
Term
Name the ending numbers in the classification E-70XX for low hydrogen SMAW electrodes
Definition
70X5, 70X6, 70X8
Term
Name the position numbers in the classification ofE-70XX SMAW electrodes
Definition
701X is all positions, 702X is flat and horizontalonly
Term
T or F: according to AWS D1.1, steel backing ongroove welds must be continuous.
Definition
TRUE
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
At what level are currents considered "primaryshock currents" and hence dangerous?
Definition
6mA
Term
what is the most common ASTM structural steel?What is its minimum yield strength? What is its
minimum Ultimate Tensile Strength (UTS)?
Definition
A-36, 36ksi (36,000 psi), and 58ksi
Term
AWS D1.1 states that all surfaces to be weldedand surfaces adjacent must be free from what
elements?
Definition
thick scale, slag, moisture, rust, grease, and otherforeign material. Paint & mill scale (not loose or
thick) are acceptable
Term
what is the numerical designation for the AWSfiller metal specification "Carbon Steel Covered
Arc Welding Electrodes"?
Definition
A5.1
Term
what is the numerical designation for the AWSfiller metal specification "Low Alloy Steel Covered
Arc Welding Electrodes"?
Definition
A5.5
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
The American Welding Society certifies weldinginspectors according to what document?
Definition
AWS QC1
Term
what topics do the sections of AWS D1.1 cover?
Definition
1) General Requirements; 2) Design of WeldedConnections; 3) Prequalification of WPSs;
4)Qualification; 5) Fabrication; 6) Inspection; 7)Stud Welding; 8) Strengthening and Repair of
Existing Structures
Term
what are the two kinds of welding inspectorsdefined by the AWS D1.1? What are their roles?
Definition
Fabrication/Erection (QC), and Verification (QA)
Term
"Authorized Inspector" is a term associated withwhat? By what organization are they certified?
Definition
an "Authorized Inspector" is one who has bottom-line QC responsibility; they are certified by theNational Board of Boiler and Pressure Vessel
Inspectors
Term
How often are new editions of the AWS AD1.1published?
Definition
every 2 years
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
what does the "Code of Ethics" of the AWS QC1consider to be the most important obligation of a
welding inspector
Definition
public safety
Term
what is a MTR?
Definition
Material Test Report
Term
For material less than 1" thick what is themaximum allowable undercut in a fillet weld? Are
there exceptions?
Definition
1/32" exception: up to 1/16" for any accumulatedlength up to 2" in 12"
Term
the term "Contract Documents" refers to what?
Definition
1) all applicable codes; 2) the (structural) plans; 3)the specifications
Term
what is a specification?
Definition
a document that describes the requirements for aparticular object or component
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
what is a weld discontinuity?
Definition
an interruption in the typical structure of thematerial
Term
what is a weld defect?
Definition
a discontinuity or discontinuities that render aproduct unacceptable
Term
what is an RFI?
Definition
Request For Information
Term
the maximum atmospheric exposure time allowedby AWS D1.1 for E-7018 electrodes is what?
Definition
4 hours
Term
According to AWS D1.1, the separation betweenfaying surfaces of butt joints landing on a backing
bar cannot exceed what amount?
Definition
1/16"
-
CWI TEST Flashcards
http://www.flashcardmachine.com/cwi-test.html[4/25/2012 10:54:16 AM]
Term
what is the national organization for concrete andsoils technicians?
Definition
ASCET
Term
under the provisions of AWS D1.1, who isultimately and legally responsible for assuring that
the welders are certified?
Definition
the contractor
Term
most often, preheat and interpass temperaturesare measured using what?
Definition
temperature-indicating crayons (also contactpyrometer)
Term
when the base metal must be preheated prior towelding, AWS D1.1 specifies that the arts must beheated to the required minimum for at least how
far in all directions prior to welding?
Definition
3" (or thickness of material, whichever is greater))
Term
ASTM is an abbreviation for what?
Definition
American Society for Testing and Materials
-
CWI TEST Flashcards
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2001 - 2012 Flash Card Machine, LLC Privacy Policy Terms of Use Links Flashcards
Term
once removed from their original containers, AWSD1.1 requires that low-hydrogen electrodes be
maintained in electrode ovens at what minimumtemperature?
Definition
250F
Term
What is an ITL?
Definition
Independent Testing Laboratory
Term
A CWI or CAWI must have passed what eyetest(s)?
Definition
20/40 with or without correction and Jaeger J-2 at12" near vision acuity (color test may be required
by employer, but is not required by AWS)
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