1|Page
CWB Exam comprehensive questions and verified
answers ACTUAL EXAM 2026 TEST!! Graded A+
73. The specification for the cutting of a carbon steel plate calls for AAC.
This is the acronym for:
a) Acetylene argon cutting.
b) Air carbon arc cutting.
c) Automated arc cutting.
d) Air arc cutting. ......ANSWER......b) Air carbon arc cutting
74. Which of the following welding processes uses a non-consumable
electrode:
a) SMAW
b) GMAW
c) ESW
d) SAW
e) GTAW ......ANSWER......e) GTAW
75. Arc blow is a phenomenon encountered when welding with what
type of power source?
a) AC
b) DC
c) AC with high frequency
pg. 1
,2|Page
d) Inverters
e) All of the above ......ANSWER......b) DC
76. A radiograph taken at a welded joint shows numerous round and
elongated dark spots in the weld
and in the parent material adjacent to the weld. These indications are
likely to be:
a) Stray arc strikes.
b) Weld spatter.
c) Tungsten inclusions.
d) Chipping hammer marks.
e) Surface porosity. ......ANSWER......d) Chipping hammer marks.
77. The electrode that would be used for SAW is:
a) E347T-3
b) E120T5-G
c) E90T1-D3
d) EM12K ......ANSWER......d) EM12K
78. The term "cleaning action of the arc" when used with the GTAW
process refers to:
a) Oxide removal while welding.
b) Removing grease & dirt from the weld area before welding is started.
pg. 2
,3|Page
c) Inter pass cleaning of the weld.
d) Dipping the electrode in a chemical solvent to ensure cleanliness
before welding.
e) Cleaning the electrode tip periodically. ......ANSWER......a) Oxide
removal while welding.
79. On an ultrasonic angle beam probe, the index point is:
a) Checked on a calibration block.
b) Fixed on the probe so that checking is not required .
c) The optimal wavelength frequency of the sound waves.
d) One half the skip distance. ......ANSWER......a) Checked on a
calibration block
79. On an ultrasonic angle beam probe, the index point is:
a) Checked on a calibration block.
b) Fixed on the probe so that checking is not required .
c) The optimal wavelength frequency of the sound waves.
d) One half the skip distance. ......ANSWER......a) Checked on a
calibration block.
80. Which of the following statements is false regarding the
radiographic examination of welds?
a) Both slag and tungsten inclusions appear on a radiograph as dark
areas.
pg. 3
, 4|Page
b) Porosity or gas pockets in a weld show on the radiograph as a round
or slightly elongated dark
spots.
c) Internal cracks appear as fine dark lines, either straight or irregular.
d) Weld spatter would look like scattered, light colored spots.
e) Incomplete penetration will show a straight, dark colored line at or
near the weld centre-line. ......ANSWER......a) Both slag and tungsten
inclusions appear on a radiograph as dark areas.
81. From the choices below, which one is correct with regard to a
qualification test on a pipe assembly:
a) Welded horizontally at the 3G position .
b) Welded vertically at the 2G position.
c) Welded in the 5G position at 45°.
d) Welded in the 6G position at 45°.
e) Welded in the 4G flat position. ......ANSWER......d) Welded in the 6G
position at 45°.
82. Which of the following best describes the definition of a defect?
a) The term defect is used to describe the presence of a material
discontin uity or irregularity of sufficient magnitude to warrant
rejection based upon requirements of the applicable specification .
b) The term defect is used to describe the presence of a material
discontinuity or irregularity that
pg. 4
CWB Exam comprehensive questions and verified
answers ACTUAL EXAM 2026 TEST!! Graded A+
73. The specification for the cutting of a carbon steel plate calls for AAC.
This is the acronym for:
a) Acetylene argon cutting.
b) Air carbon arc cutting.
c) Automated arc cutting.
d) Air arc cutting. ......ANSWER......b) Air carbon arc cutting
74. Which of the following welding processes uses a non-consumable
electrode:
a) SMAW
b) GMAW
c) ESW
d) SAW
e) GTAW ......ANSWER......e) GTAW
75. Arc blow is a phenomenon encountered when welding with what
type of power source?
a) AC
b) DC
c) AC with high frequency
pg. 1
,2|Page
d) Inverters
e) All of the above ......ANSWER......b) DC
76. A radiograph taken at a welded joint shows numerous round and
elongated dark spots in the weld
and in the parent material adjacent to the weld. These indications are
likely to be:
a) Stray arc strikes.
b) Weld spatter.
c) Tungsten inclusions.
d) Chipping hammer marks.
e) Surface porosity. ......ANSWER......d) Chipping hammer marks.
77. The electrode that would be used for SAW is:
a) E347T-3
b) E120T5-G
c) E90T1-D3
d) EM12K ......ANSWER......d) EM12K
78. The term "cleaning action of the arc" when used with the GTAW
process refers to:
a) Oxide removal while welding.
b) Removing grease & dirt from the weld area before welding is started.
pg. 2
,3|Page
c) Inter pass cleaning of the weld.
d) Dipping the electrode in a chemical solvent to ensure cleanliness
before welding.
e) Cleaning the electrode tip periodically. ......ANSWER......a) Oxide
removal while welding.
79. On an ultrasonic angle beam probe, the index point is:
a) Checked on a calibration block.
b) Fixed on the probe so that checking is not required .
c) The optimal wavelength frequency of the sound waves.
d) One half the skip distance. ......ANSWER......a) Checked on a
calibration block
79. On an ultrasonic angle beam probe, the index point is:
a) Checked on a calibration block.
b) Fixed on the probe so that checking is not required .
c) The optimal wavelength frequency of the sound waves.
d) One half the skip distance. ......ANSWER......a) Checked on a
calibration block.
80. Which of the following statements is false regarding the
radiographic examination of welds?
a) Both slag and tungsten inclusions appear on a radiograph as dark
areas.
pg. 3
, 4|Page
b) Porosity or gas pockets in a weld show on the radiograph as a round
or slightly elongated dark
spots.
c) Internal cracks appear as fine dark lines, either straight or irregular.
d) Weld spatter would look like scattered, light colored spots.
e) Incomplete penetration will show a straight, dark colored line at or
near the weld centre-line. ......ANSWER......a) Both slag and tungsten
inclusions appear on a radiograph as dark areas.
81. From the choices below, which one is correct with regard to a
qualification test on a pipe assembly:
a) Welded horizontally at the 3G position .
b) Welded vertically at the 2G position.
c) Welded in the 5G position at 45°.
d) Welded in the 6G position at 45°.
e) Welded in the 4G flat position. ......ANSWER......d) Welded in the 6G
position at 45°.
82. Which of the following best describes the definition of a defect?
a) The term defect is used to describe the presence of a material
discontin uity or irregularity of sufficient magnitude to warrant
rejection based upon requirements of the applicable specification .
b) The term defect is used to describe the presence of a material
discontinuity or irregularity that
pg. 4
