aws-cwi some question (2)
TRANSCRIPT
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Term 1
The ef f ective throat of a complete
enetr ation roove weld shall be
Definition 1
The thickness of the thinner part
oined
Term 2
When welding lengthwise connecting
two round bar s, the pr oper symbol
would be
Definition 2
Flare V Gr oove 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
30°
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Term 4
The minimum thickness f or a plug
weld in mater ial 1" thick shall be
Definition 4
5/8"
Term 5
Welding shall not be done when:
Definition 5
When ambient temper ature is lower
than 0°F or
Surfaces are wet or exposed to r ain,
snow, or
high wind or When welder s ar e
exposed to in-
clement conditions.
Term 6
When ambient temperature is lower
than 0°F or
Sur f aces are wet or exposed to r ain,
snow, or
high wind or When welder s ar e
exposed to in-clement conditions.
Definition 6
AWSA5.17 & A5.23
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Term 7
When welding 5/16" plate in the f ield, a
welder must be cer tified f or
Definition 7
Structural
Term 8
Re-entrant copes shall have a
minimum radius of :
Definition 8
1"
Term 9
Where tight f it of intermediate
stif f ener s is specif ied, it shall be
def ined as allowing a gap of up to
Definition 9
1/16"
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Term 10
Spatter is caused by
Definition 10
Welding current too high or arc length
too long
Term 11
In order to insur e sound welds at the
ends of a joint. The f ollowing shall be
used
Definition 11
Extension bars & r unoff plates
Term 12
In repairing cracks in a weld, r emove
the cr ack and sound weld metal how
f ar beyond each end of the cr ack
Definition 12
2"
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Term 13
The r emoval of slag f rom a deposited
weld bead is:
Definition 13
Mandator y
Term 14
What electrodes have low hydr ogen
coating?
Definition 14
Electrodes ending 5, 6, or 8.
Term 15
With which process would an ER70S-X
electrode be used
Definition 15
G AW
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Term 16
Oven stor age of low hydr ogen
electrodes is:
Definition 16
To avoid damage by atmospher ic
moisture
Term 17
Welded joints not pre-qualified shall
be:
Definition 17
Qualif ied
Term 18
Welder cer tif ication ma be waived by
Definition 18
No one
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Term 19
Peening is not permitted on
Definition 19
Root and surface layer s of welds
5.27
Term 20
The suggested minimum nominal
thickness of backing bars f or SMAW
process is
Definition 20
3/16
Term 21
Pre-heat and inter pass temperatures
must be sufficient to
Definition 21
Pr event cr ack formation
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Term 22
Low hydrogen electr odes exposed to
the atmospher e f or longer per iods
then that permitted by codes shall be £
redried no more than
Definition 22
One time
Term 23
The minimum ef f ective length of a f illet
weld shall be:
Definition 23
Over all length of full size f illet including
boxing
Term 24
Caulking of welds; What is it and is it
permitted
Definition 24
Caulking of welds is to plastically
def orm weld or base metal surfaces to
seal or obscure discontinuities as
undercut, piping por osity, pin holes,
cracks, etc. Caulking is not per mitted
on mostmetals.
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Term 25
In gas metal arc welding the electr ode
is:
Definition 25
Consumable
Term 26
The ef f ective area of a f illet weld is:
Definition 26
The ef fective weld length X the
effective thr oat.
Term 27
The minimum length of an inter mittent
f illet weld shall be:
Definition 27
1 1/2"
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Term 28
The 'U' in joint designation TC-U9a
ref ers to:
Definition 28
Metal thickness, U = Unlimited
Term 29
Ar c str ikes outside the ar ea of
permanent welds should be:
Definition 29
Avoided
Term 30
Base metal specification may be f ound
in:
Definition 30
ASTM
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Term 31
Information regarding back gouging of
roots in a single bevel groove weld
without backing is found in footnote
section:
Definition 31
Note 4
Term 32
What is the required root opening f or
the SMA welded CJP single-U-gr oove
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-f ore welding second side.
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Term 34
The size of the spacer for double-V
groove weld using a 30° bevel and
welded in the over head position shall
be:
Definition 34
1/8" X 3/8"
Term 35
What is the r equir ed root opening for a
single-V-gr oove weld to a back-up
strip welded in the vertical position
at 20° angle:
Definition 35
1/2"
Term 36
A single J-gr oove weld prepar ation in
the hor izontal position shall be made
with SMAW & groove angle of :
Definition 36
45°
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Term 37
What is the root opening f or a partial
joint penetration square groove weldbutt oint of material 1/4" thick:
Definition 37
1/8"
Term 38
A break in the ar r ow shaf t in the
symbol in the single bevel gr oove weld
indicates:
Definition 38
Which plate to chamf er
Term 39
What is the maximum base metal
thickness in a single bevel groove
weld:
Definition 39
U = Unlimited
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Term 40
What is the included angle of
prepar ation for the double-V-grooveweld. Usin a s acer and a 1/2" root
Definition 40
20°
Term 41
In an E70 1 8 electr ode, what does the
E designate
Definition 41
Electrode
Term 42
Befor e welding a joint, the surf aces to
be welded shall be free of what?
Definition 42
Scale, slag, rust, moisture, grease, etc.
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Term 43
If a welder is qualif ied by testing in 3/8
inch thick tubular str uctur al steel in the
6-GR position CJP using a
E701 8 electr ode, is the welder
qualif ied to weld a PJP on 1 inch thick
Str uctur al Steel plate in the vertical
down
osition?
Definition 43
NO
Term 44
It is usually good pr actice 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
Flat and horizontal
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Term 49
Which welding process would an
E70T-X electr ode be used with?
Definition 49
FCAW
Term 50
Single bevel gr oove, with 45° angle
and backing, the root opening must be
what?
Definition 50
1/4"
Term 51
The maximum size of a f illet weld in the
f lat position, and in one pass shall be
how much?
Definition 51
3/8"
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Term 52
Continuous solid wire electr ode (
E70S-X ) used in semi-automatic
welding would be used in which
r ocess?
Definition 52
G AW
Term 53
Members distorted by welding may bestraightened by application of limited
amounts of localized heat. The
temper ature of heated ar eas as
measur ed by approved methods shall
not exceed how much for Quenched
and
tempered ( Q. & T.) steel nor how much
f or other steels.?
Definition 53
Q&T1100°F, Other 1200°F
Term 54
What is the minimum thickness of
mater ial to be used f or weld washer s?
Definition 54
0.05"
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Term 55
When parts are to be fillet welded, in a
lap joint of material under 3" thick the
allowable separation of faying
sur f aces shall not exceed how much?
Definition 55
3/16" Max
Term 56
The maximum size electr ode allowed
for the r oot pass of an overhead f illet
weld is what diameter?
Definition 56
5/32"
Term 57
What is the maximum per mitted carbon
equivalent for r einfor cing steel that
may be welded without pr ior
qualif ication
tests?
Definition 57
0.65 %
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Term 58
The fir st 7 in the E71T-7 designates
what?
Definition 58
The tensile strength in 10,000's of psi
Term 59
The last digit "7" in E7027 designates
what?
Definition 59
Type of f lux coating on electrode - Ir on
powder /
Ir on oxide; & type of cur rent used - AC
or
DCEN.
Term 60
When welding a f lat fillet r oot pass, the
largest allowable electrode is what
diameter?
Definition 60
3/16"
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Term 61
The "S" in E70S-3 designates what?
Definition 61
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 cover ing?
Definition 63
SMAW mild steel electr odes where last
digit is
"7", ie. E6027
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Term 64
The E6011 electrode will give more
penetration than all other SMAWelectrodes exce t what?
Definition 64
E6010only
Term 65
The "60" in E6011 indicates what
Definition 65
60,000 psi Tensile strength
Term 66
The ef fective throat thickness of a f illet
weld is computed by measuring the
shor test distance between what two
points?
{AW
Definition 66
The r oot to the f ace
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Term 67
Low hydrogen shielded metal arc
electrodes shall be protected from
moisture. The E70XX low hydrogen
electrodes
shall be r eturned to an oven within
what period of time?
Definition 67
4 hours
Term 68
In butt weld r oot pass in the horizontal
position,the thickness of weld metal
that may be built up behind the ad-
vancing ar c shall be how lar ge?
Definition 68
5/16"
Term 69
Between "Str uctur al Welding Code -
Steel" Dl.l and "Structural Welding
Code - Sheet Steel" D1.3, there is M
a metal thickness overlap of the
minimum f or Dl.l and the maximum for
D1.3. How much overlap of metalthickness is ther e?
Definition 69
0.055 = approx. 1/16 inch.
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Term 70
Even if prior qualification is made,
what is the maximum per mitted carbon
equivalent f or r einf orcing steel that
is to be welded?
Definition 70
0.75%
Term 71
In which positions is 1/2" the maximum
size allowed for a fillet weld made in
one pass?
Definition 71
Ver tical
Term 72
Using DC straight polar ity, the
electr ode is which; . . . . positive,
negative or neutr al
Definition 72
Negative
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Term 73
The minimum pr eheat and interpass
temper ature for ASTM A572 grade 60
str uctur al steel 2" thick welded with ™
SMAW rocess is how much?
Definition 73
225°F
Term 74
The minimum pr eheat and interpass
temperature for structur al steel 1/2"
welded with the SMAW process and
an electrode other than Low Hydr ogen
is how much?
Definition 74
32°F
Term 75
The largest electrode per mitted when
welding in the f lat position is what
diameter
Definition 75
5/16"
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Term 76
E7018 electr odes are used with what
type of welding cur r ent
Definition 76
AC & DCEP
Term 77
Should back-up str ips or bar s be
removed f r om all welds? Explain
Definition 77
No; Not mandator but per missible
Term 78
Shielded metal ar c electr odes with low
hydrogen cover ing shall be kept dr y in
storage ovens. Low hydr ogen
electr odes of the E80XX ser ies when
taken from the oven shall be used
within what per iod of time?
Definition 78
2 hours
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Term 79
Except f or root pass, the lar gest
electr ode permitted f or out of positionweldin is what diameter
Definition 79
1/4
Term 80
Rever se polar ity means that the
electr ode is which; .. . positive,
negative or netural ?
Definition 80
Positive
Term 81
What does "CJP" in the tail
specif ications par t of a weld symbol
mean?
Definition 81
Complete Joint Penetr ation
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Term 82
What kind of metal is classified as
6061-T6?
Definition 82
Aluminum
Term 83
Saf ety precautions shall conf or m to
the latest edition of what specif ication
published by the Amer ican 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
60,000 psi
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Term 88
The minimum thickness of a plug or
slot weld in 3/8" plate is how much?
Definition 88
3/8"
Term 89
The lar gest size of crater permitted and
lef t 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 f or size
shall be measur ed how?
Definition 90
Leg length of the largest inscribed
isosceles r t.
triangle
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Term 94
which is most general of the f ollowing
terms: code, standard, specif ication?
Definition 94
standard
Term 95
ASME B31.1 & B31.3 cover what
subjects?
Definition 95
B31.1 covers pressure vessels and
power piping, B31.3 cover s chemical
process piping
Term 96
Inter pass temper atures ar e measured
what distance from the joint?
Definition 96
1"
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Term 97
What topics ar e cover ed by ASME
Boiler and Pressure Vessel Codesections V, VIII, & IX?
Definition 97
V covers nondestructive examination;
VIII covers Unf ired Pressure Vessels,
and IX covers Welding and Br azing
Qualif ications
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 measur ed using a
tolerance of :____
Definition 99
-1/32"
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Term 100
is the name of the document that
prescribes the details of how a weldmust be erf or med.
Definition 100
WPS - Welding Procedure
Specif ication
Term 101
When it is impractical f or 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 accor d with what?
Definition 102
a written document
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Term 103
which code choices are available for
taking AWS QC1 CWI/CAWI exams?
Definition 103
AWS D1.1; API 1104; AWS D1.2
(structural aluminum); AWS D1.5
(Bridge); AWS D15.1 (Railr oad); ASME
VII & IX; ASME IX, B31.1, & B31.3
Term 104
AWS D1.1 specif ies that
nondestructive testing must be
performed by an individual qualif ied in
accor dance 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 cover s chemical
process piping
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Term 106
Inter pass temper atures ar e measured
what distance from the joint?
Definition 106
1"
Term 107
welding symbols are def ined in what
publication?
Definition 107
AWS A2.4
Term 108
What topics ar e cover ed by ASME
Boiler and Pressure Vessel Code
sections V, VIII, & IX?
Definition 108
V covers nondestructive examination;
VIII covers Unf ired Pressure Vessels,
and IX covers Welding and Br azing
Qualif ications
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Term 109
In structural applications, when the
metal thickness is less than 1/8", whatAWS code a lies?
Definition 109
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 (Railr oad); ASME
VII & IX; ASME IX, B31.1, & B31.3
Term 111
for f illet welds on material gr eater than
1" thick or greater, what is the
allowable undercut? Are there
exceptions?
Definition 111
1/16", no exceptions
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Term 112
in cases of dispute over welding terms,
what document pr evails?
Definition 112
AWS A3.0
Term 113
the standar d describing the
requirements for welding cr oss-
country pipeline is:
Definition 113
API 1104
Term 114
acetylene becomes unstable above
what pr essur e?
Definition 114
15psi
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Term 115
saf ety tr aining is mandated under the
provisions of what agency?
Definition 115
OSHA
Term 116
Name the ending number s in the
classif ication E-70XX for low hydr ogen
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 f lat and
horizontal only
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Term 118
T or F: according to AWS D1.1, steel
backing on groove welds must becontinuous.
Definition 118
TRUE
Term 119
At what level are currents considered
"primary shock curr ents" and hence
dangerous?
Definition 119
6mA
Term 120
what is the most common ASTM
str uctur al steel? What is its minimum
yield str ength? What is its minimum
Ultimate Tensile Strength (UTS)?
Definition 120
A-36, 36ksi (36,000 psi), and 58ksi
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Term 121
AWS D1.1 states that all sur f aces to be
welded and surf aces adjacent must bef r ee f r om what elements?
Definition 121
thick scale, slag, moisture, rust,
gr ease, and other foreign mater ial.
Paint & mill scale (not loose or thick)
ar e acce table
Term 122
what is the numerical designation f or
the AWS filler metal specification
"Car bon Steel Cover ed Arc Welding
Electrodes"?
Definition 122
A5.1
Term 123
what is the numerical designation f or
the AWS filler metal specification "Low
Alloy Steel Covered Ar c Welding
Electrodes"?
Definition 123
A5.5
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Term 124
The Amer ican Welding Society certif ies
welding inspector s accor ding to whatdocument?
Definition 124
AWS QC1
Term 125
what topics do the sections of AWS
D1.1 cover ?
Definition 125
1) General Requir ements; 2) Design of
Welded Connections; 3)
Prequalif ication of WPSs;
4)Qualification; 5) Fabr ication; 6)
Inspection; 7) Stud Welding; 8)
Str engthening and Repair of Existing
Str uctures
Term 126
what are the two kinds of welding
inspector s defined by the AWS D1.1?
What ar e their r oles?
Definition 126
Fabr ication/Er ection (QC), and
Ver ification (QA)
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Term 127
"Author ized Inspector" is a ter m
associated with what? By whator anization ar e the cer tif ied?
Definition 127
an "Authorized Inspector " is one who
has bottom-line QC responsibility; they
ar e certif ied by the National Boar d of
Boiler and Pr essure Vessel Ins ector s
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
impor tant obligation of a welding
inspector
Definition 129
public saf ety
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Term 130
what is a TR?
Definition 130
Mater ial Test Repor t
Term 131
For mater ial less than 1" thick what is
the maximum allowable under cut in a
fillet weld? Ar e ther e exceptions?
Definition 131
1/32" exception: up to 1/16" f or any
accumulated length up to 2" in 12"
Term 132
the ter m "Contract Documents" ref ers
to what?
Definition 132
1) all applicable codes; 2) the
(structural) plans; 3) the specif ications
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Term 133
what is a specification?
Definition 133
a document that descr ibes the
requirements for a particular object or com onent
Term 134
what is a weld discontinuit ?
Definition 134
an inter r uption in the typical str ucture
of the mater ial
Term 135
what is a weld defect?
Definition 135
a discontinuity or discontinuities that
r ender a pr oduct unacceptable
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Term 136
what is an RFI?
Definition 136
Request For Inf ormation
Term 137
the maximum atmospheric exposur e
time allowed by AWS D1.1 for E-7018
electrodes is what?
Definition 137
4 hours
Term 138
Accor ding to AWS D1.1, the separ ation
between f aying sur f aces of butt joints
landing on a backing bar cannot
exceed what amount?
Definition 138
1/16"
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Term 139
what is the national or ganization f or
concrete and soils technicians?
Definition 139
ASCET
Term 140
under the provisions of AWS D1.1,
who is ultimately and legally
responsible f or assuring that the
welder s ar e certif ied?
Definition 140
the contr actor
Term 141
most of ten, preheat and interpass
temper atures ar e measured using
what?
Definition 141
temperatur e-indicating crayons (also
contact pyrometer)
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Term 142
when the base metal must be
pr eheated prior to welding, AWS D1.1
specifies that the arts must be heated
to the requir ed minimum for at least
how f ar in all dir ections prior to
welding?
Definition 142
3" (or thickness of material, whichever
is gr eater ))
Term 143
ASTM is an abbreviation f or what?
Definition 143
American Society f or Testing and
Materials
Term 144
once r emoved from their original
containers, AWS D1.1 r equir es that
low-hydrogen electrodes be
maintained in electrode ovens at what
minimum temperatur e?
Definition 144
250°F
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Term 145
What is an ITL?
Definition 145
Independent Testing Laborator y
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 r equir ed by
employer , but is not required by AWS)