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Canadian Welding Bureau (CWB) Level 2 Welding
Inspector VERIFIED EXAM Questions with Correct
Answers and explanations LATEST THIS
YEAR||NEWEST EXAM!!!
Which of the following imperfections is normally
considered as unacceptable regardless of size or
location?
a) Porosity.
b) Crack.
c) Inadequate penetration.
d) Lamination.
e) Burn-through. - Answer-b) Crack.
Select the correct penetrameter thickness for 2%
sensitivity when radiographing a weldment 1.25 inches in
thickness.
a) 0.012 in.
b) 0.015 in.
c) 0.025 in.
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d) 0.030 in. - Answer-c) 0.025 in.
Which of the following statements concerning porosity is
true?
a) Porosity cannot be trapped within a weld.
b) Porosity moves up through later passes and will show
only in a final pass.
c) Porosity is restricted to the centre line of a weld.
d) Porosity can result from faulty welder technique.
e) Porosity can be dissipated by an appropriate heat
treatment. - Answer-d) Porosity can result from faulty
welder technique.
An irregular, dense white spot is seen on the radiograph of
a weld. Assuming it was caused by the welding process
used, which one of the processes below would be
responsible?
a) SMAW process.
b) GTAW process.
c) GMAW process.
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d) ST process.
e) ESW process. - Answer-b) GTAW process.
Which of the following operations is known to result in the
emission of ionizing radiation at levels dangerous to
human health?
a) Shielded metal arc welding.
b) Plasma arc welding.
c) Operation of high voltage portable generator sets.
d) Radiographic inspection.
e) Electroslag and electrogas welding. - Answer-d)
Radiographic inspection.
The ultrasonic transducer is pressed against the plate of a
welded joint. The sound travels longitudinally through the
plate to the opposite side. The signal seen on the UT
screen that comes from this opposite side of the plate:
a) Is the initial pulse signal.
b) Is the back reflection signal.
c) Is the front reflection signal.
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d) Must be equal in amplitude to any defect signal.
e) Cannot be used for establishing the thickness of the
material under test. - Answer-b) Is the back reflection
signal.
To measure the strength of a welded joint what
mechanical test would you prescribe?
a) A transverse weld tension test.
b) A charpy test.
c) A CTOD test.
d) An all weld metal tension test.
e) A side bend test. - Answer-a) A transverse weld tension
test.
Select the cutting process that would provide the
narrowest heat affected zone when cutting 12.5 mm (0.5
in) thick carbon steel.
a) Oxy-acetylene cutting.
b) Air-carbon arc cutting.
c) Oxy-propane cutting.
d) Plasma arc cutting.
Canadian Welding Bureau (CWB) Level 2 Welding
Inspector VERIFIED EXAM Questions with Correct
Answers and explanations LATEST THIS
YEAR||NEWEST EXAM!!!
Which of the following imperfections is normally
considered as unacceptable regardless of size or
location?
a) Porosity.
b) Crack.
c) Inadequate penetration.
d) Lamination.
e) Burn-through. - Answer-b) Crack.
Select the correct penetrameter thickness for 2%
sensitivity when radiographing a weldment 1.25 inches in
thickness.
a) 0.012 in.
b) 0.015 in.
c) 0.025 in.
,2|Page
d) 0.030 in. - Answer-c) 0.025 in.
Which of the following statements concerning porosity is
true?
a) Porosity cannot be trapped within a weld.
b) Porosity moves up through later passes and will show
only in a final pass.
c) Porosity is restricted to the centre line of a weld.
d) Porosity can result from faulty welder technique.
e) Porosity can be dissipated by an appropriate heat
treatment. - Answer-d) Porosity can result from faulty
welder technique.
An irregular, dense white spot is seen on the radiograph of
a weld. Assuming it was caused by the welding process
used, which one of the processes below would be
responsible?
a) SMAW process.
b) GTAW process.
c) GMAW process.
,3|Page
d) ST process.
e) ESW process. - Answer-b) GTAW process.
Which of the following operations is known to result in the
emission of ionizing radiation at levels dangerous to
human health?
a) Shielded metal arc welding.
b) Plasma arc welding.
c) Operation of high voltage portable generator sets.
d) Radiographic inspection.
e) Electroslag and electrogas welding. - Answer-d)
Radiographic inspection.
The ultrasonic transducer is pressed against the plate of a
welded joint. The sound travels longitudinally through the
plate to the opposite side. The signal seen on the UT
screen that comes from this opposite side of the plate:
a) Is the initial pulse signal.
b) Is the back reflection signal.
c) Is the front reflection signal.
, 4|Page
d) Must be equal in amplitude to any defect signal.
e) Cannot be used for establishing the thickness of the
material under test. - Answer-b) Is the back reflection
signal.
To measure the strength of a welded joint what
mechanical test would you prescribe?
a) A transverse weld tension test.
b) A charpy test.
c) A CTOD test.
d) An all weld metal tension test.
e) A side bend test. - Answer-a) A transverse weld tension
test.
Select the cutting process that would provide the
narrowest heat affected zone when cutting 12.5 mm (0.5
in) thick carbon steel.
a) Oxy-acetylene cutting.
b) Air-carbon arc cutting.
c) Oxy-propane cutting.
d) Plasma arc cutting.
