CWB Level 2 Exam questions
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1. 1.To measure the strength of a welded joint what me- a) A transverse weld ten-
chanical test would you prescribe? sion test
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.
2. 2. Select the cutting process that would provide the e) Laser beam cutting
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.
e) Laser beam cutting
3. 3. Which of the following refers to a welder test where b) 2G
a pipe assembly is placed vertically and the joint weld-
ed in the horizontal position without rotating the as-
sembly?
a) 1G
b) 2G
c) 3G
d) 5G
e) 6G
4. 4. Which of the following imperfections is normally b) Crack.
considered as unacceptable regardless of size or loca-
tion?
a) Porosity.
b) Crack.
c) Inadequate penetration.
, CWB Level 2 Exam questions
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d) Lamination.
e) Burn-through.
5. 5. Select the correct penetrameter thickness for 2% c) 0.025 in
sensitivity when radiographing a weldment 1 .25 inch-
es in thickness.
a) 0.012 in.
b) 0.015 in.
c) 0.025 in
d) 0.030 in.
6. 6. Which of the following statements concerning d) Porosity can result from
porosity is true? faulty welder technique.
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.
7. 7. An irregular, dense white spot is seen on the ra- b) GTAW process.
diograph 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.
8. 8. Which of the following operations is known to result d) Radiographic inspec-
in the emission of ionizing radiation at levels danger- tion.
, CWB Level 2 Exam questions
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ous to human health?
A) shield metal arc welding.
B) Plasma arc welding.
C) Operation of high voltage portable generator sets.
d) Radiographic inspection.
e) Electroslag and electrogas welding.
9. 9. The ultrasonic transducer is pressed against the b) Is the back reflection
plate of a welded joint. The sound travels signal.
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.
10. 11. Which of the following is a stainless steel elec- d) E308-16
trode?
a) E4918-1
b) E4918-A1
c) E4818
d) E308-16
e) E4111
11. 12. Reverse polarity refers to the use of a: b) DC power source, elec-
a) AC power source, electrode + trode+
b) DC power source, electrode+
c) AC power source, electrode-
d) DC power source, electrode-
, CWB Level 2 Exam questions
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12. 13. Which welding process(es) can result in metallic d) GTAW
inclusions in the weld?
a) SMAW.
b) FCAW.
c) GMAW.
d) GTAW
e) SAW
13. 14. In producing a drawing for a scale of 1:50, what e) 300 em.
would be the distance represented by a distance on
the drawing of 6 em?
a) 12 em.
b) 30 em.
c) 50 em.
d) 240 em.
e) 300 em.
14. 15. As a general rule, weld discontinuities detected e) Signal amplitude.
by ultrasonic testing are accepted or rejected on the
basis of:
a) Vertical linearity.
b) Time base analysis.
c) Horizontal response data.
d) Noise to signal ratio.
e) Signal amplitude.
15. 16. An advantage of an AC welding circuit is: c) It helps to eliminate arc
a) It is best used with large electrodes on thin materi- blow.
als.
b) It is best used with small electrodes on thin sec-
tions.
Study online at https://quizlet.com/_jek0hz
1. 1.To measure the strength of a welded joint what me- a) A transverse weld ten-
chanical test would you prescribe? sion test
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.
2. 2. Select the cutting process that would provide the e) Laser beam cutting
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.
e) Laser beam cutting
3. 3. Which of the following refers to a welder test where b) 2G
a pipe assembly is placed vertically and the joint weld-
ed in the horizontal position without rotating the as-
sembly?
a) 1G
b) 2G
c) 3G
d) 5G
e) 6G
4. 4. Which of the following imperfections is normally b) Crack.
considered as unacceptable regardless of size or loca-
tion?
a) Porosity.
b) Crack.
c) Inadequate penetration.
, CWB Level 2 Exam questions
Study online at https://quizlet.com/_jek0hz
d) Lamination.
e) Burn-through.
5. 5. Select the correct penetrameter thickness for 2% c) 0.025 in
sensitivity when radiographing a weldment 1 .25 inch-
es in thickness.
a) 0.012 in.
b) 0.015 in.
c) 0.025 in
d) 0.030 in.
6. 6. Which of the following statements concerning d) Porosity can result from
porosity is true? faulty welder technique.
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.
7. 7. An irregular, dense white spot is seen on the ra- b) GTAW process.
diograph 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.
8. 8. Which of the following operations is known to result d) Radiographic inspec-
in the emission of ionizing radiation at levels danger- tion.
, CWB Level 2 Exam questions
Study online at https://quizlet.com/_jek0hz
ous to human health?
A) shield metal arc welding.
B) Plasma arc welding.
C) Operation of high voltage portable generator sets.
d) Radiographic inspection.
e) Electroslag and electrogas welding.
9. 9. The ultrasonic transducer is pressed against the b) Is the back reflection
plate of a welded joint. The sound travels signal.
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.
10. 11. Which of the following is a stainless steel elec- d) E308-16
trode?
a) E4918-1
b) E4918-A1
c) E4818
d) E308-16
e) E4111
11. 12. Reverse polarity refers to the use of a: b) DC power source, elec-
a) AC power source, electrode + trode+
b) DC power source, electrode+
c) AC power source, electrode-
d) DC power source, electrode-
, CWB Level 2 Exam questions
Study online at https://quizlet.com/_jek0hz
12. 13. Which welding process(es) can result in metallic d) GTAW
inclusions in the weld?
a) SMAW.
b) FCAW.
c) GMAW.
d) GTAW
e) SAW
13. 14. In producing a drawing for a scale of 1:50, what e) 300 em.
would be the distance represented by a distance on
the drawing of 6 em?
a) 12 em.
b) 30 em.
c) 50 em.
d) 240 em.
e) 300 em.
14. 15. As a general rule, weld discontinuities detected e) Signal amplitude.
by ultrasonic testing are accepted or rejected on the
basis of:
a) Vertical linearity.
b) Time base analysis.
c) Horizontal response data.
d) Noise to signal ratio.
e) Signal amplitude.
15. 16. An advantage of an AC welding circuit is: c) It helps to eliminate arc
a) It is best used with large electrodes on thin materi- blow.
als.
b) It is best used with small electrodes on thin sec-
tions.
