The effective throat of a complete penetration groove weld shall be
The thickness of the thinner part joined
Term 2
When welding lengthwise connecting two round bars, the proper symbol
would be
Definition 2
Flare V Groove weld
Term 3
Fillet welds may be used to connect skewed T joints provided the plates are set at an angle of not less than
Definition 3
The minimum thickness for a plug
weld in material 1" thick shall be 5/8"
Term 5
Welding shall not be done when:
Definition 5
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 in-
clement conditions.
Term 6
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 in-
clement conditions.
Definition 6
When welding 5/16" plate in the field, a
welder must be certified for Structural
Term 8
Re-entrant copes shall have a minimum radius of:
Definition 8
1"
Term 9
Where tight fit of intermediate stiffeners is specified, it shall be defined as allowing a gap of up to
Definition 9
Spatter is caused by Welding current too high or arc length too long
Term 11
In order to insure sound welds at the ends of a joint. The following shall be
used
Definition 11
Extension bars & runoff plates
Term 12
In repairing cracks in a weld, remove the crack and sound weld metal how
far beyond each end of the crack
Definition 12
The removal of slag from a deposited
weld bead is: Mandatory
Term 14
What electrodes have low hydrogen coating?
Definition 14
Electrodes ending 5, 6, or 8.
Term 15
With which process would an ER70S-X electrode be used
Definition 15
Oven storage of low hydrogen electrodes is:
To avoid damage by atmospheric moisture
Term 17
Welded joints not pre-qualified shall be:
Definition 17
Qualified
Term 18
Welder certification may be waived by
Definition 18
Peening is not permitted on Root and surface layers of welds 5.27
Term 20
The suggested minimum nominal thickness of backing bars for SMAW
process is
Definition 20
3/16
Term 21
Pre-heat and interpass temperatures must be sufficient to
Definition 21
Low hydrogen electrodes exposed to the atmosphere for longer periods then that permitted by codes shall be £
redried no more than
One time
Term 23
The minimum effective length of a fillet weld shall be:
Definition 23
Overall length of full size fillet including boxing
Term 24
Caulking of welds; What is it and is it permitted
Definition 24
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.
In gas metal arc welding the electrode
is: Consumable
Term 26
The effective area of a fillet weld is:
Definition 26
The effective weld length X the effective throat.
Term 27
The minimum length of an intermittent fillet weld shall be:
Definition 27
The 'U' in joint designation TC-U9a
refers to: Metal thickness, U = Unlimited
Term 29
Arc strikes outside the area of permanent welds should be:
Definition 29
Avoided
Term 30
Base metal specification may be found in:
Definition 30
Information regarding back gouging of roots in a single bevel groove weld without backing is found in footnote
section:
Note 4
Term 32
What is the required root opening for the SMA welded CJP single-U-groove
weld:
Definition 32
0 to 1/8"
Term 33
When spacers are used in the double-bevel groove weld, the weld is not to
be complete until:
Definition 33
Spacer removed by gouging to sound metal be-fore welding second side.
The size of the spacer for double-V groove weld using a 30° bevel and welded in the overhead position shall
be:
1/8" X 3/8"
Term 35
What is the required root opening for a single-V-groove weld to a back-up strip welded in the vertical position
at 20° angle:
Definition 35
1/2"
Term 36
A single J-groove weld preparation in the horizontal position shall be made
with SMAW & groove angle of:
Definition 36
What is the root opening for a partial joint penetration square groove weld
butt joint of material 1/4" thick:
1/8"
Term 38
A break in the arrow shaft in the symbol in the single bevel groove weld
indicates:
Definition 38
Which plate to chamfer
Term 39
What is the maximum base metal thickness in a single bevel groove
weld:
Definition 39
What is the included angle of preparation for the double-V-groove weld. Using a spacer and a 1/2" root
20°
Term 41
In an E70 1 8 electrode, what does the E designate
Definition 41
Electrode
Term 42
Before welding a joint, the surfaces to be welded shall be free of what?
Definition 42
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?
NO
Term 44
It is usually good practice to oscillate which of the mild steel SMAW
electrodes
Definition 44
E6010 & E6011
Term 45
The E7024 electrode may be used in what positions?
Definition 45
Which of the SMAW electrodes has an
iron powder covering? Electrodes with last digit "4"
Term 47
Which of the SMAW electrodes has an iron powder and low-hydrogen
covering?
Definition 47
Electrodes with last digit "8"
Term 48
Which welding process would an E7018 electrode be used with?
Definition 48
Which welding process would an
E70T-X electrode be used with? FCAW
Term 50
Single bevel groove, with 45° angle and backing, the root opening must be
what?
Definition 50
1/4"
Term 51
The maximum size of a fillet weld in the flat position, and in one pass shall be
how much?
Definition 51
Continuous solid wire electrode ( E70S-X ) used in semi-automatic welding would be used in which
process?
GMAW
Term 53
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.?
Definition 53
Q&T1100°F, Other 1200°F
Term 54
What is the minimum thickness of material to be used for weld washers?
Definition 54
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?
3/16" Max
Term 56
The maximum size electrode allowed for the root pass of an overhead fillet
weld is what diameter?
Definition 56
5/32"
Term 57
What is the maximum permitted carbon equivalent for reinforcing steel that
may be welded without prior qualification
tests?
Definition 57
The first 7 in the E71T-7 designates
what? The tensile strength in 10,000's of psi
Term 59
The last digit "7" in E7027 designates what?
Definition 59
Type of flux coating on electrode - Iron powder /
Iron oxide; & type of current used - AC or
DCEN.
Term 60
When welding a flat fillet root pass, the largest allowable electrode is what
diameter?
Definition 60
The "S" in E70S-3 designates what? GMAW - Solid wire electrode
Term 62
The digit "1" in E7018 indicates that welding is to be in what positions?
Definition 62
All positions
Term 63
Which of the SMAW electrodes has an iron powder and iron oxide covering?
Definition 63
SMAW mild steel electrodes where last digit is
The E6011 electrode will give more penetration than all other SMAW
electrodes except what?
E6010only
Term 65
The "60" in E6011 indicates what
Definition 65
60,000 psi Tensile strength
Term 66
The effective throat thickness of a fillet weld is computed by measuring the shortest distance between what two
points? {AW
Definition 66
Low hydrogen shielded metal arc electrodes shall be protected from moisture. The E70XX low hydrogen
electrodes
shall be returned to an oven within what period of time?
4 hours
Term 68
In butt weld root pass in the horizontal position,the thickness of weld metal
that may be built up behind the ad- vancing arc shall be how large?
Definition 68
5/16"
Term 69
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?
Definition 69
Even if prior qualification is made, what is the maximum permitted carbon
equivalent for reinforcing steel that is to be welded?
0.75%
Term 71
In which positions is 1/2" the maximum size allowed for a fillet weld made in
one pass?
Definition 71
Vertical
Term 72
Using DC straight polarity, the electrode is which; . . . . positive,
negative or neutral
Definition 72
The minimum preheat and interpass temperature for ASTM A572 grade 60 structural steel 2" thick welded with ™
SMAW process is how much?
225°F
Term 74
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?
Definition 74
32°F
Term 75
The largest electrode permitted when welding in the flat position is what
diameter
Definition 75
E7018 electrodes are used with what
type of welding current AC & DCEP
Term 77
Should back-up strips or bars be removed from all welds? Explain
Definition 77
No; Not mandatory but permissible
Term 78
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?
Definition 78
Except for root pass, the largest electrode permitted for out of position
welding is what diameter
1/4
Term 80
Reverse polarity means that the electrode is which; .. . positive,
negative or netural ?
Definition 80
Positive
Term 81
What does "CJP" in the tail specifications part of a weld symbol
mean?
Definition 81
What kind of metal is classified as
6061-T6? Aluminum
Term 83
Safety precautions shall conform to the latest edition of what specification
published by the American Welding Society?
Definition 83
ANSI/AWSZ49.1
Term 84
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?
Definition 84
The amount of lap required for a fillet welded lap joint shall be at least five
times the thickness of the thinner plate not less than how much?
1 inch
Term 86
Backing strips are used to prevent melting through roots of grooves
welds by using what for backing material?
Definition 86
Metal, weld metal, carbon,flux, gas, glass tape, etc.
Term 87
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?
Definition 87
The minimum thickness of a plug or
slot weld in 3/8" plate is how much? 3/8"
Term 89
The largest size of crater permitted and left at the end of a weld is how much?
Definition 89
No crater of any size is allowed
Term 90
A fillet weld when measured for size shall be measured how?
Definition 90
Leg length of the largest inscribed isosceles rt.
what are the education and experience requirements for a CWI? CAWI?
CWI: 5 years experience, or 3 years & a technical degree; CAWI: 2 years experience, or 6 months & a technical
degree
Term 92
welding inspectors can be categorized how?
Definition 92
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
Term 93
what document(s) cover(s) safety in welding and cutting?
Definition 93
which is most general of the following
terms: code, standard, specification? standard
Term 95
ASME B31.1 & B31.3 cover what subjects?
Definition 95
B31.1 covers pressure vessels and power piping, B31.3 covers chemical
process piping
Term 96
Interpass temperatures are measured what distance from the joint?
Definition 96
What topics are covered by ASME Boiler and Pressure Vessel Code
sections V, VIII, & IX?
V covers nondestructive examination; VIII covers Unfired Pressure Vessels,
and IX covers Welding and Brazing Qualifications
Term 98
In structural applications, when the metal thickness is less than 1/8", what
AWS code applies?
Definition 98
AWS D1.3 - sheet metal
Term 99
Fillet welds may be measured using a tolerance of :____
Definition 99
is the name of the document that prescribes the details of how a weld
must be performed.
WPS - Welding Procedure Specification
Term 101
When it is impractical for the welding inspector t witness all tests and observe all welds during production,
what kind of inspection results?
Definition 101
random-partial
Term 102
the welding inspector is responsible for judging acceptability of a product
in accord with what?
Definition 102
which code choices are available for taking AWS QC1 CWI/CAWI exams?
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
Term 104
AWS D1.1 specifies that nondestructive testing must be performed by an individual qualified in
accordance with what document?
Definition 104
SNT-TC-1a
Term 105
ASME B31.1 & B31.3 cover what subjects?
Definition 105
B31.1 covers pressure vessels and power piping, B31.3 covers chemical
Interpass temperatures are measured
what distance from the joint? 1"
Term 107
welding symbols are defined in what publication?
Definition 107
AWS A2.4
Term 108
What topics are covered by ASME Boiler and Pressure Vessel Code
sections V, VIII, & IX?
Definition 108
V covers nondestructive examination; VIII covers Unfired Pressure Vessels,
and IX covers Welding and Brazing Qualifications
In structural applications, when the metal thickness is less than 1/8", what
AWS code applies?
AWS D1.3 - sheet metal
Term 110
which code choices are available for taking AWS QC1 CWI/CAWI exams?
Definition 110
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
Term 111
for fillet welds on material greater than 1" thick or greater, what is the allowable undercut? Are there
exceptions?
Definition 111
in cases of dispute over welding terms,
what document prevails? AWS A3.0
Term 113
the standard describing the requirements for welding
cross-country pipeline is:
Definition 113
API 1104
Term 114
acetylene becomes unstable above what pressure?
Definition 114
safety training is mandated under the
provisions of what agency? OSHA
Term 116
Name the ending numbers in the classification E-70XX for low hydrogen
SMAW electrodes
Definition 116
70X5, 70X6, 70X8
Term 117
Name the position numbers in the classification of E-70XX SMAW
electrodes
Definition 117
701X is all positions, 702X is flat and horizontal only
T or F: according to AWS D1.1, steel backing on groove welds must be
continuous.
TRUE
Term 119
At what level are currents considered "primary shock currents" and hence
dangerous?
Definition 119
6mA
Term 120
what is the most common ASTM structural steel? What is its minimum
yield strength? What is its minimum Ultimate Tensile Strength (UTS)?
Definition 120
AWS D1.1 states that all surfaces to be welded and surfaces adjacent must be
free from what elements?
thick scale, slag, moisture, rust, grease, and other foreign material. Paint & mill scale (not loose or thick)
are acceptable
Term 122
what is the numerical designation for the AWS filler metal specification "Carbon Steel Covered Arc Welding
Electrodes"?
Definition 122
A5.1
Term 123
what is the numerical designation for the AWS filler metal specification "Low
Alloy Steel Covered Arc Welding Electrodes"?
Definition 123
The American Welding Society certifies welding inspectors according to what
document?
AWS QC1
Term 125
what topics do the sections of AWS D1.1 cover?
Definition 125
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
Term 126
what are the two kinds of welding inspectors defined by the AWS D1.1?
What are their roles?
Definition 126
Fabrication/Erection (QC), and Verification (QA)
"Authorized Inspector" is a term associated with what? By what organization are they certified?
an "Authorized Inspector" is one who has bottom-line QC responsibility; they
are certified by the National Board of Boiler and Pressure Vessel Inspectors
Term 128
How often are new editions of the AWS AD1.1 published?
Definition 128
every 2 years
Term 129
what does the "Code of Ethics" of the AWS QC1 consider to be the most
important obligation of a welding inspector
Definition 129
what is a MTR? Material Test Report
Term 131
For material less than 1" thick what is the maximum allowable undercut in a
fillet weld? Are there exceptions?
Definition 131
1/32" exception: up to 1/16" for any accumulated length up to 2" in 12"
Term 132
the term "Contract Documents" refers to what?
Definition 132
1) all applicable codes; 2) the (structural) plans; 3) the specifications
what is a specification?
a document that describes the requirements for a particular object or
component
Term 134
what is a weld discontinuity?
Definition 134
an interruption in the typical structure of the material
Term 135
what is a weld defect?
Definition 135
a discontinuity or discontinuities that render a product unacceptable
what is an RFI? Request For Information
Term 137
the maximum atmospheric exposure time allowed by AWS D1.1 for E-7018
electrodes is what?
Definition 137
4 hours
Term 138
According to AWS D1.1, the separation between faying surfaces of butt joints
landing on a backing bar cannot exceed what amount?
Definition 138
what is the national organization for
concrete and soils technicians? ASCET
Term 140
under the provisions of AWS D1.1, who is ultimately and legally responsible for assuring that the
welders are certified?
Definition 140
the contractor
Term 141
most often, preheat and interpass temperatures are measured using
what?
Definition 141
temperature-indicating crayons (also contact pyrometer)
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?
3" (or thickness of material, whichever is greater))
Term 143
ASTM is an abbreviation for what?
Definition 143
American Society for Testing and Materials
Term 144
once removed from their original containers, AWS D1.1 requires that
low-hydrogen electrodes be maintained in electrode ovens at what
minimum temperature?
Definition 144
What is an ITL? Independent Testing Laboratory
Term 146
A CWI or CAWI must have passed what eye test(s)?
Definition 146
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)
