CWI Part C Practice UPDATED ACTUAL Exam Questions and CORRECT Answers

CWI Part C Practice UPDATED ACTUAL
Exam Questions and CORRECT Answers
If notch toughness of welded joints is required, which of the following shall specify the
minimum absorbed energy / test temperature on the contract documents.
Building owner
Building official
Engineer

AWS CWI - CORRECT ANSWER - Engineer


Which of the following is the minimum diameter of the hole for a plug weld on 1" thick plate?
1"
1 5/16"
5/8"

1 1/8" - CORRECT ANSWER - 1 5/16"


In regard to PJP groove welds, which of the following shall indicate the weld groove depths
("D") needed to attain the required for the welding process and position of welding to be used.
weld size
"S"

Z-Loss - CORRECT ANSWER - weld size and "S"


Steel backing of the welds used in buildings need not be removed unless required by the:
building official
architect
stress design category

special inspector - CORRECT ANSWER - stress design category


The width of a slot weld on a 3/4" thick plate shall be a minimum of:

,3/4"
1"
1 1/8"

1 1/16" - CORRECT ANSWER - 1 1/16"


The ends of a slot for a slot weld shall be semicircular or shall have the corners rounded to a
radius not less than:
1/2"
the thickness of the weld
the thickness of the part

1" - CORRECT ANSWER - the thickness of the part


The length of a slot to be welded shall not exceed:
ten times the thickness of the part
2 1/4 times the thickness of the part
ten times the depth of the weld

the width of the slot plus 1/8" - CORRECT ANSWER - ten times the thickness of the part


Which of the following shall be shown on the plans of complete details?
location
type

size - CORRECT ANSWER - location
type
size


In regard to lap joints carrying stress, the minimum amount of lap shall be five times the
thickness of the thinner part joined but not less than:
the thickness of the part

,the size of the weld
5"

1" - CORRECT ANSWER - 1"


The minimum depth of filling of a slot weld in base metal 1" thick shall be:
1/2"
5/8"
3/4"

1" - CORRECT ANSWER - 5/8"


Side or end returns for fillet welds shall be returned continuously around a corner for a distance
of:
2"
1"
2 to 4 times the size of the weld

a distance of the size of the weld - CORRECT ANSWER - 2 to 4 times the size of the weld


T-joints in which the angle between joined parts is _____ greater than 100° or less than 80° shall
be defined as skewed T-joints.
greater than 110° or less than 70°
greater than 100° or less than 80°
less than 100° or greater than 80°

none of the above - CORRECT ANSWER - less than 100° or greater than 80°


In built-up tension members, the longitudinal spacing of stitch welds connecting a plate
component to other components, or connecting two plate components to each other, shall not
exceed 12" or _______ times the thickness of the thinner plate.
10
20

, 24

30 - CORRECT ANSWER - 24


When weld access holes are required, they shall be sized to provide clearances necessary
______.
a minimum radius of 1 ½'
and approved by the welder foreman
and maintain the axial tension parameter of the electrode used

for deposition of sound weld metal - CORRECT ANSWER - for deposition of sound weld
metal


In compression members the longitudinal spacing of stitch welds connecting two plate
components or a plate component to other components shall not exceed 24 times the thickness of
the thinner plate or:
16"
10"
6"

12" - CORRECT ANSWER - 12"


The minimum length of an intermittent fillet weld shall be:
1"
3"
1 1/2"

3/4" - CORRECT ANSWER - 1 1/2"


The effective length of any segment of intermittent fillet weld shall not be less than
___________.
2"
1 1/2"
1 3/4"