CWB
1. 1.To measure the strength of a welded joint what me- a) A transverse weld
tenchanical 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 welded in the horizontal position without rotating
the assembly? 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 location?
a) Porosity.
b) Crack.
c) Inadequate penetration.
d) Lamination.
e) Burn-through.
, CWB
5. 5. Select the correct penetrameter thickness for 2% c) 0.025 in 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.
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 inspecin
the emission of ionizing radiation at levels danger- tion.
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.
, CWB
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-
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
, CWB
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.
c) It helps to eliminate arc blow.
d) It minimizes internal undercut.
16. 17. The resistance of steel to failure by brittle fracture e) Notched bar impact is
commonly assessed by conducting a: test.
a) Rockwell C hardness test.
b) Tensile test.
c) Chemical analysis.
d) Hydrogen embrittlement test.
e) Notched bar impact test.
1. 1.To measure the strength of a welded joint what me- a) A transverse weld
tenchanical 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 welded in the horizontal position without rotating
the assembly? 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 location?
a) Porosity.
b) Crack.
c) Inadequate penetration.
d) Lamination.
e) Burn-through.
, CWB
5. 5. Select the correct penetrameter thickness for 2% c) 0.025 in 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.
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 inspecin
the emission of ionizing radiation at levels danger- tion.
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.
, CWB
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-
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
, CWB
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.
c) It helps to eliminate arc blow.
d) It minimizes internal undercut.
16. 17. The resistance of steel to failure by brittle fracture e) Notched bar impact is
commonly assessed by conducting a: test.
a) Rockwell C hardness test.
b) Tensile test.
c) Chemical analysis.
d) Hydrogen embrittlement test.
e) Notched bar impact test.
