CWB Exam Practice Questions and Answers (100% Pass)
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CWB
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CWB
CWB Exam Practice Questions and
Answers (100% Pass)
1.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. - Answer️️ -a) A
transver...
3. Which of the following refers to a welder test where a pipe assembly is
placed vertically and the joint welded in the horizontal position without
rotating the assembly?
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.
7. 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.
d) ST process.
e) ESW process. - Answer✔️✔️-b) GTAW process.
8. Which of the following operations is known to result in the emission of
ionizing radiation at levels dangerous to human health?
A) shield metal arc welding.
B) Plasma arc welding.
C) Operation of high voltage portable generator sets.
e) Electroslag and electrogas welding. - Answer✔️✔️-d) Radiographic
inspection.
9. 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.
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.
11. Which of the following is a stainless steel electrode?
a) E4918-1
b) E4918-A1
c) E4818
d) E308-16
e) E4111 - Answer✔️✔️-d) E308-16
12. Reverse polarity refers to the use of a:
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