CWI Test

Term
The effective throat of a complete penetration
groove weld shall be
Definition
The thickness of the thinner part joined

Term
When welding lengthwise connecting two round
bars, the proper symbol would be
Definition
Flare V Groove weld

Term
Fillet welds may be used to connect skewed T
joints provided the plates are set at an angle of
not less than
Definition
30°

Term
The minimum thickness for a plug weld in
material 1" thick shall be
Definition
5/8"

Term
Welding shall not be done when:
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 in-
clement conditions.

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 in-
clement conditions.
Definition
AWSA5.17 & A5.23

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

Term
Re-entrant copes shall have a minimum radius of:
Definition
1"

Term
Where tight fit of intermediate stiffeners is
specified, 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 a
joint. The following shall be used
Definition
Extension bars & runoff plates

Term Definition
In repairing cracks in a weld, remove the crack
and sound weld metal how far beyond each end of
the crack
2"

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

Term
What electrodes have low hydrogen coating?
Definition
Electrodes ending 5, 6, or 8.

Term
With which process would an ER70S-X electrode
be 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

Term
Peening is not permitted on
Definition
Root and surface layers of welds
5.27

Term
The suggested minimum nominal thickness of
backing bars for SMAW process is
Definition
3/16

Term
Pre-heat and interpass temperatures must be
sufficient to
Definition
Prevent crack formation

Term
Low hydrogen electrodes exposed to the
atmosphere 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 shall
be:
Definition
Overall length of full size fillet including boxing

Term
Caulking of welds; What is it and is it permitted
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
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 weld
shall be:
Definition
1 1/2"

Term
The 'U' in joint designation TC-U9a refers to:
Definition
Metal thickness, U = Unlimited

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

Term
Base metal specification may be found in:
Definition
ASTM

Term
Information regarding back gouging of roots in a
single bevel groove weld without backing is found
in footnote
section:
Definition
Note 4

Term
What is the required root opening for the SMA
welded CJP single-U-groove weld:
Definition
0 to 1/8"

Term
When spacers are used in the double-bevel groove
weld, the weld is not to be complete until:
Definition
Spacer removed by gouging to sound metal be-
fore welding second side.

Term
The size of the spacer for double-V groove weld
using 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 position
Definition
1/2"
at 20° angle:

Term
A single J-groove weld preparation in the
horizontal position shall be made with SMAW &
groove angle of:
Definition
45°

Term
What is the root opening for a partial joint
penetration square groove weld butt joint of
material 1/4" thick:
Definition
1/8"

Term
A break in the arrow shaft in the symbol in the
single bevel groove weld indicates:
Definition
Which plate to chamfer

Term
What is the maximum base metal thickness in a
single bevel groove weld:
Definition
U = Unlimited

Term
What is the included angle of preparation for the
double-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 welded
shall be free of what?
Definition
Scale, slag, rust, moisture, grease, etc.

Term
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?
Definition
NO

Term
It is usually good practice to oscillate which of the
mild steel SMAW electrodes
Definition
E6010 & E6011

Term
The E7024 electrode may be used in what
positions?
Definition
Flat and horizontal

Term
Which of the SMAW electrodes has an iron
powder covering?
Definition
Electrodes with last digit "4"

Term
Which of the SMAW electrodes has an iron
powder and low-hydrogen covering?
Definition
Electrodes with last digit "8"

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

Term
Which welding process would an E70T-X
electrode 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 flat
position, and in one pass shall be how much?
Definition
3/8"

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

Term
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
Q&T1100°F, Other 1200°F

Term
What is the minimum thickness of material to be
used for weld washers?
Definition
0.05"

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?
Definition
3/16" Max

Term
The maximum size electrode allowed for the root
pass of an overhead fillet weld is what diameter?
Definition
5/32"

Term
What is the maximum permitted carbon
equivalent for reinforcing steel that may be
welded without prior qualification
tests?
Definition
0.65 %

Term
The first 7 in the E71T-7 designates what?
Definition
The tensile strength in 10,000's of psi

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 largest
allowable 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 to
be in what positions?
Definition
All positions

Term
Which of the SMAW electrodes has an iron
powder and iron oxide covering?
Definition
SMAW mild steel electrodes where last digit is
"7", ie. E6027

Term
The E6011 electrode will give more penetration
than 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 is
computed by measuring the shortest distance
between what two
points?
{AW
Definition
The root to the face

Term
Low hydrogen shielded metal arc electrodes shall
Definition
4 hours
be protected from moisture. The E70XX low
hydrogen electrodes
shall be returned to an oven within what period of
time?

Term
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
5/16"

Term
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
0.055 = approx. 1/16 inch.

Term
Even if prior qualification is made, what is the
maximum permitted carbon equivalent for
reinforcing steel that
is to be welded?
Definition
0.75%

Term
In which positions is 1/2" the maximum size
allowed 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 temperature
for ASTM A572 grade 60 structural steel 2" thick
welded with ™
SMAW process is how much?
Definition
225°F

Term
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
32°F

Term
The largest electrode permitted when welding in
Definition
5/16"
the flat position is what diameter

Term
E7018 electrodes are used with what type of
welding current
Definition
AC & DCEP

Term
Should back-up strips or bars be removed from
all welds? Explain
Definition
No; Not mandatory but permissible

Term
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
2 hours

Term
Except for root pass, the largest electrode
permitted for out of position welding is what
diameter
Definition
1/4

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

Term
What does "CJP" in the tail specifications part of
a 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 latest
edition of what specification published by the
American Welding
Society?
Definition
ANSI/AWSZ49.1

Term
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
60,000 psi

Term
The amount of lap required for a fillet welded lap
joint shall be at least five times the thickness of
the thinner
Definition
1 inch
plate not less than how much?

Term
Backing strips are used to prevent melting
through 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 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
30°

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

Term
The largest size of crater permitted and left at the
end of a weld is how much?
Definition
No crater of any size is allowed

Term
A fillet weld when measured for size shall be
measured how?
Definition
Leg length of the largest inscribed isosceles rt.
triangle

Term
what are the education and experience
requirements for a CWI? CAWI?
Definition
CWI: 5 years experience, or 3 years & a technical
degree; 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's or engineer's

Term
what document(s) cover(s) safety in welding and
cutting?
Definition
ANSI Z49.1

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 what
distance from the joint?
Definition
1"

Term
What topics are covered by ASME Boiler and
Pressure Vessel Code sections V, VIII, & IX?
Definition
V covers nondestructive examination; VIII covers
Unfired Pressure Vessels, and IX covers Welding
and Brazing Qualifications

Term
In structural applications, when the metal
thickness is less than 1/8", what AWS code
applies?
Definition
AWS D1.3 - sheet metal

Term
Fillet welds may be measured using a tolerance of
:____
Definition
-1/32"

Term
is the name of the document that prescribes the
details of how a weld must be performed.
Definition
WPS - Welding Procedure Specification

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

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

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

Term
AWS D1.1 specifies that nondestructive testing
must 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 what
distance 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 and
Pressure Vessel Code sections V, VIII, & IX?
Definition
V covers nondestructive examination; VIII covers
Unfired Pressure Vessels, and IX covers Welding
and Brazing Qualifications

Term
In structural applications, when the metal
thickness is less than 1/8", what AWS code
applies?
Definition
AWS D1.3 - sheet metal

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

Term
for fillet welds on material greater than 1" thick
or greater, what is the allowable undercut? Are
there exceptions?
Definition
1/16", no exceptions

Term
in cases of dispute over welding terms, what
document prevails?
Definition
AWS A3.0

Term
the standard describing the requirements for
welding cross-country pipeline is:
Definition
API 1104

Term
acetylene becomes unstable above what pressure?
Definition
15psi

Term
safety training is mandated under the provisions
of 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 of
E-70XX SMAW electrodes
Definition
701X is all positions, 702X is flat and horizontal
only

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

Term
At what level are currents considered "primary
shock 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 welded
and surfaces adjacent must be free from what
elements?
Definition
thick scale, slag, moisture, rust, grease, and other
foreign material. Paint & mill scale (not loose or
thick) are acceptable

Term
what is the numerical designation for the AWS
filler metal specification "Carbon Steel Covered
Arc Welding Electrodes"?
Definition
A5.1

Term
what is the numerical designation for the AWS
filler metal specification "Low Alloy Steel
Covered Arc Welding Electrodes"?
Definition
A5.5

Term
The American Welding Society certifies welding
inspectors 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 Welded
Connections; 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 inspectors
defined by the AWS D1.1? What are their roles?
Definition
Fabrication/Erection (QC), and Verification (QA)

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

Term Definition
How often are new editions of the AWS AD1.1
published?
every 2 years

Term
what does the "Code of Ethics" of the AWS QC1
consider 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 the
maximum allowable undercut in a fillet weld?
Are there exceptions?
Definition
1/32" exception: up to 1/16" for any accumulated
length 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 a
particular object or component

Term
what is a weld discontinuity?
Definition
an interruption in the typical structure of the
material

Term
what is a weld defect?
Definition
a discontinuity or discontinuities that render a
product unacceptable

Term
what is an RFI?
Definition
Request For Information

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

Term
According to AWS D1.1, the separation between
faying surfaces of butt joints landing on a backing
bar cannot exceed what amount?
Definition
1/16"

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

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

Term
most often, preheat and interpass temperatures
are measured using what?
Definition
temperature-indicating crayons (also contact
pyrometer)

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

Term
ASTM is an abbreviation for what?
Definition
American Society for Testing and Materials

Term
once removed from their original containers,
AWS D1.1 requires that low-hydrogen electrodes
be maintained in electrode ovens at what
minimum temperature?
Definition
250°F

Term
What is an ITL?
Definition
Independent Testing Laboratory

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