CWB Level 2 Exam questions exam with ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
correct answers ||\\||\\
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. - correct
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔a) A transverse weld tension test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
2. 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.
||\\||\\ ||\\||\\ ||\\||\\
e) Laser beam cutting - correct answers✔✔e) Laser beam
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
cutting
,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? ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
a) 1G ||\\||\\ ||\\||\\
b) 2G ||\\||\\
||\\||\\ c) 3G ||\\||\\
||\\||\\ d) 5G ||\\||\\
||\\||\\ e) 6G - correct answers✔✔b) 2G
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
4. 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. - correct answers✔✔b) Crack.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
5. 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 ||\\||\\ ||\\||\\ ||\\||\\
d) 0.030 in. - correct answers✔✔c) 0.025 in
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
6. 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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
- correct answers✔✔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. - correct answers✔✔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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
d) Radiographic inspection.
||\\||\\ ||\\||\\
e) Electroslag and electrogas welding. - correct answers✔✔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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
correct answers ||\\||\\
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. - correct
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
answers✔✔a) A transverse weld tension test ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
2. 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.
||\\||\\ ||\\||\\ ||\\||\\
e) Laser beam cutting - correct answers✔✔e) Laser beam
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
cutting
,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? ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
a) 1G ||\\||\\ ||\\||\\
b) 2G ||\\||\\
||\\||\\ c) 3G ||\\||\\
||\\||\\ d) 5G ||\\||\\
||\\||\\ e) 6G - correct answers✔✔b) 2G
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
4. 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. - correct answers✔✔b) Crack.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
5. 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 ||\\||\\ ||\\||\\ ||\\||\\
d) 0.030 in. - correct answers✔✔c) 0.025 in
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
6. 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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
- correct answers✔✔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. - correct answers✔✔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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
d) Radiographic inspection.
||\\||\\ ||\\||\\
e) Electroslag and electrogas welding. - correct answers✔✔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.
||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\
