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CWI code 2015
questions for code test
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05/21/2016

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Term
fillet welding 3/8 stud flat. what diameter?
Definition
5/32 or 3/16-
7.5.5.6
Term
welder certification lasts ?
Definition
indefinitely unless not engaged in the process for more than 6 months at a time. (period of effectiveness)
4.2.3.1
Term
maximum electrode diameter, current, root pass thickness, fill pass thickness, single pass fillet size, single pass layer width for prequalified procedure
Definition
table 3.6
Term
visual examinations are requires for inspectors every______ months per D1.1
Definition
3 years or less if necessary (visual acuity) 6.1.4.4
Term
alternate stress-relief treatment. (below minimum specified temperature)
Definition
table 5.3
Term
steel backing for statically loaded structures. (removal)
Definition
need not be welded in full length or removed unless specified by engineer. 5.9.1.5
Term
WPS qualification visual inspection of grove welds (including pipe clause 9)
Definition
no cracks, craters filled to the full cross sections of the weld, reinforcement not exceeding 1/8, shall have complete fusion, undercut no more than 1/32, CJP- root must be inspected- no cracks incomplete fusion or inadequate joint pen, max root concavity shall be 1/16, melt-through shall be 1/8
4.9.1.1
Term
WPS qualification visual of fillet welds (include pipe clause 9)
Definition
no cracks, craters filled to full cross section, leg sizes shall not be less than the required size, profile undercut 1/32 max
4.9.1.2
Term
allowable atmospheric exposure of low-hi electrodes
Definition
table 5.1
Term
minimum fillet weld size
Definition
table 5.7
Term
SMAW electrodes A5.1 vs A5.5
Definition
A5.1- electrode requirements A5.5 spec for low-alloy steel electrodes
5.3.2
Term
tack welds
Definition
5.17
Term
tack welds incorporated into SAW welds
Definition
5.17.5
Term
approved base metal, filler metal, preheat
Definition
tables 3.1-3.3
Term
electrode classification group
Definition
table 4.13
Term
how much overlap is allowed in a procedure qualification test coupon
Definition
shall have complete fusion. for procedure qualification as well as in general.
4.9.1.1
Term
root opening for tubular butt joint with or without backing
Definition
1/8 without backing, with backing "production joint root opening" (WTF)figure 9.22
Term
tubular open root opening tolerances without backing
Definition
SMAW face- +-1/16 root opening +-1/16
GMAW face- +-1/32 root opening +-1/16
FCAW face- +-1/16 root opening +-1/16
table 9.5
groove angle degree +- 5 ALL
Term
welding shall not be done
Definition
ambient temp is lower that 0*F
surfaces are wet or exposed to precip
high wind velocities
5.11.2
welding personal are exposed to inclement conditions
Term
minimum preheat and interpass temp
Definition
below 32 preheat to 70* min (all materials all processes
table 3.3
Term
limits on acceptability and repair of mill induced laminar discontinuities. table 5.4.
Definition
1 inch or less- need not be explored
over 1 and 1/8 in depth- none, explore depth
over 1 depth over 1/8 but not greater that 1/4- remove, need not weld
over 1 deeper that 1/4 but not greater than 1- completely remove and weld
over 1 deeper than 1 U.T.
table 5.4 and 5.14.5.1
Term
undercut
Definition
less than 1"- shall not exceed 1/32
1/16 for 2" in 12" span
1" and above shall not exceed 1/16.
table 6.1
Term
time of inspection
Definition
ASTM 514, 517, and
A 709 grade HPS 100W 48 hours after
table 6.1
Term
in primary members undercut shall be no more than ______
Definition
0.01
table 6.1
Term
when the weld is transverse to tensile stress under any design loading conditions undercut shall not exceed
Definition
1/32
table 6.1
Term
CJP groove welds in butt joints transverse to the directions of computed tensile stress
Definition
shall have NO visible piping porosity
table 6.1
Term
all other groove welds and fillet welds
Definition
sum of visible piping porosity 1/32 or greater in diameter shall not exceed 3/8 in any linear inch and shall not exceed 3/4 in any 12 inches
Term
frequency of piping porosity in fillet welds shall not exceed
Definition
one in each 4 inches of weld. the max diameter shall not exceed 3/32
table 6.1
Term
fillet welds connections stiffeners to web-
Definition
the sum of the diameters of piping porosity shall not exceed 3/8 in any linear inch and shall not exceed 3/4 in any 12 inches
table 6.1
Term
CJP groove welds in butt joints transverse to the direction of computed tensile stress shall have
Definition
NO piping porosity
table 6.1
Term
for all other groove welds the frequency of piping porosity shall not exceed
Definition
one in 4 inches of length, the max diameter shall not exceed 3/32
Term
when rounding corners in bend test specimen the max radius is____
Definition
1/8 figure 4.8
Term
undercut on a procedure qualification plate
Definition
shall not exceed 1/32
4.9.1.1
Term
SMAW low-hi A5.1
Definition
E70XX 4 hours max
E70XXR, E70XXHZR, E7018M- 9 hours max
table 5.1
Term
SMAW A5.5 low-hi
Definition
E70XX-X 4 hours max
E80XX-X 2 hours max
E90XX-X 1 hour max
table 5.1
E100XX-XE110XX-X .5 hours max
Term
min fillet weld size on material less than or equal to 1/4
Definition
1/8
min size for cyclically loaded shall be 3/16
table 5.7
Term
min fillet size on thickness grater than 1/4 and less than or equal to 1/2
Definition
3/16
table 5.7
Term
min fillet on thickness grater than 1/2 and less than or equal to 3/4
Definition
1/14
table 5.7
Term
min fillet on material grater than 3/4
Definition
5/16
table 5.7
Term
symbol for limited thickness prequalified unlimited thickness type joint with complete penetration
Definition
L
legend for figures 3.2 and 3.3
P. 65
Term
numerical symbol for a flare bevel grove
Definition
10.
legend for figures 3.2 and 3.3
P. 65
Term
the duly designated person who acts for, and in behalf of, the owner or engineer on all inspection and quality matters specified by the engineer
Definition
verification inspector
1.3.3.2
Term
a welder qualified in 5G is also qualified for
Definition
plate, pipe, box tube in F,V,OH. Not H
table 9.9
Term
what qualification will qualify a welder in all positions pipe, tube, plate
Definition
6GR
table 9.9
Term
welder qualification fillet weld break test shall not contain
Definition
porosity or slag larger than 3/32 in greatest dimension
overlap
incomplete fusion
4.22.4.1
Term
in a fillet break test the coupons shall be subject to
Definition
VT,
4.22.4
Term
fillet break test shall not contain
Definition
porosity larger than 3/32 in greatest dimension
slag inclusions larger than 2.5mm at greatest dimension
incomplete fusion
overlap
4.22.4.1
Term
spot testing
Definition
shall cover at lease 4 inches of weld length
if a rejection is found it shall be explored
2 additional spots in the same segment of weld joint shall be tested
if either of those 2 spots show defects the entire segment shall be tested
6.15.3
Term
cobalt 60 shall only be used when the steel
Definition
exceeds 2.5 inches
6.17.6
Term
for procedure testing of a fillet weld
Definition
macroetch test
4.22.2
Term
what plate test positions qualify a welder for all positions
Definition
2G, 3G, and 4G
1G is not necessary
table 4.1
Term
2 in sch. 120 or 3 in sch. 40 covers a welder for
Definition
2-4 inch diameter
wall thickness 1/8-3/4
table 9.10
Term
6 in sch. 120 or 8 sch. 80 covers a welder for
Definition
4in-U
wall thickness 3/16-U
table 9.10
Term
6G covers a welder for
Definition
plate as well as pipe
table 9.9
Term
min distance from the source of radiation to the film
Definition
7 times the thickness of the weld plus reinforcement and backing
6.17.5.3
Term
contractor must keep radiographic tests for how long after completion of a job
Definition
1 full year
6.18.3
Term
part C of 6.7 covers what range of thickness
Definition
1/4-8in
table 9.18
Term
what precaution shall be used during fabrication of quenched and tempered steel
Definition
heat input shall be restricted
5.7
Term
conforming to A5.1 an E7018 electrode can be kept out of heated oven no longer than _____ hours after original opening
Definition
4 hours
table 5.1
Term
low-hi electrodes shall be kept in a heated over of a temp no less than
Definition
250*F
5.3.2.1
Term
SAW groove weld using single electrode, thickness of the weld layers shall not exceed
Definition
1/4 - 6mm
table 3.6
Term
what frequency transducer shall be used for angle beam testing
Definition
the transducer frequency shall be between 2 and 2.5 MHz, inclusive
6.21.7.1
Term
in UT what shall determine if the search unit has adequate resolution to perform the test
Definition
transducer and search unit shall resolve the 3 holes in the resolution block
6.22.3
hole size of 1/16
table 6.14
Term
for UT how often shall recalibration be made
Definition
change of operators
each 2 hour max time interval
electrical circuity is disturbed in any way including:
transducer change
battery change
electrical outlet change
coaxial cable change
power outage (failure)
6.24.3
Term
permissible variation for specified depth of beam or girder
Definition
depth up to 36in- +-1/8
depth over 36in- +-3/16
depth over 72in- +1/16 -3/16
5.22.9
Term
with RT identification marks and 2 location identification marks shall be placed on the steel at each radiographic location. additional information may be
Definition
preprinted no less than 3/4" from the edge of the weld
6.17.12
Term
if the separation is greater than ____ the legs of the filet weld shall be increased by the amount of the root opening
Definition
1/16
5.21.1
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