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CWB 1 EXAM 2025 BRAND NEW ACTUAL
EXAM WITH ANSWERS.
1. Which is not a recommended method for surface cleaning of a
part for liquid penetrant examination?
a) Cleaning with organic solvents.
b) Blasting with shot or dull sand.
c) Cleaning with de-greasers.
d) Use of de-scaling solutions.
e) Ultrasonic cleaning methods. - correct answer -b) Blasting with
shot or dull sand.
2. Which of the following weld defects is most likely to be missed
by radiography in a weld:
a) Undercutting.
b) Porosity.
c) Slag inclusions.
d) Cracking.
e) Burn through . - correct answer -d) Cracking.
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3. In the choices given below, metallographic tests would be the
least informative with regard to the:
a) Presence of the non-metallic inclusions.
b) Grain structure in the weld and fusion zone.
c) Ability of the material to withstand repeated fluctuating loads.
d) Extent and structure of the heat affected zone.
e) Number of weld passes. - correct answer -c) Ability of the
material to withstand repeated fluctuating loads.
4. In producing a drawing for a scale of 1:50, what would be the
distance represented by a distance on
the drawing of 6 em?
a) 12 cm.
b) 30 cm.
c) 50 cm.
d) 240 cm.
e) 300 cm. - correct answer -e) 300 cm.
5. The mechanical test used to determine the ability of a material
to resist failure by brittle fracture
requires the use of:
a) A tensile test specimen.
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b) A bend test specimen.
c) A compression test specimen.
d) An impact test specimen.
e) A spectrographic test. - correct answer -d) An impact test
specimen.
6. The cooling rate of aT-joint is:
a) Less than that in a butt joint.
b) Greater than that in a butt joint.
c) Greater than that in a butt joint only where the carbon
equivalent is high .
d) Greater at the mid-section than at the start.
e) Greater at the mid-section than at the finish. - correct answer -
b) Greater than that in a butt joint.
7. What are slag and non-metallic inclusions usually caused by?
a) Moisture in the weld joint.
b) High welding current.
c) Loss of shielding gas.
d) Inadequate interpass cleaning. - correct answer -d) Inadequate
interpass cleaning.
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8. Where deviations from the drawings are warranted the
inspector should do which of the following?
a) Authorize approval of the changes.
b) Obtain official approval for the changes.
c) Reject the work without any further consideration.
d) Stop the work until drawing revisions have been completed. -
correct answer -b) Obtain official approval for the changes.
9. With the appropriate electrode, which of the following welding
processes can operate with or without
a shielding gas:
a) Electrogas welding process.
b) Gas metal arc welding process.
c) Flux cored arc welding process.
d) Submerged arc welding process.
e) Pulsed gas metal arc welding process. - correct answer -c)
Flux cored arc welding process.
10. If there is inadequate penetration at the root of a double vee
groove, which of the following
statements best defines the reason for this:
CWB 1 EXAM 2025 BRAND NEW ACTUAL
EXAM WITH ANSWERS.
1. Which is not a recommended method for surface cleaning of a
part for liquid penetrant examination?
a) Cleaning with organic solvents.
b) Blasting with shot or dull sand.
c) Cleaning with de-greasers.
d) Use of de-scaling solutions.
e) Ultrasonic cleaning methods. - correct answer -b) Blasting with
shot or dull sand.
2. Which of the following weld defects is most likely to be missed
by radiography in a weld:
a) Undercutting.
b) Porosity.
c) Slag inclusions.
d) Cracking.
e) Burn through . - correct answer -d) Cracking.
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3. In the choices given below, metallographic tests would be the
least informative with regard to the:
a) Presence of the non-metallic inclusions.
b) Grain structure in the weld and fusion zone.
c) Ability of the material to withstand repeated fluctuating loads.
d) Extent and structure of the heat affected zone.
e) Number of weld passes. - correct answer -c) Ability of the
material to withstand repeated fluctuating loads.
4. In producing a drawing for a scale of 1:50, what would be the
distance represented by a distance on
the drawing of 6 em?
a) 12 cm.
b) 30 cm.
c) 50 cm.
d) 240 cm.
e) 300 cm. - correct answer -e) 300 cm.
5. The mechanical test used to determine the ability of a material
to resist failure by brittle fracture
requires the use of:
a) A tensile test specimen.
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b) A bend test specimen.
c) A compression test specimen.
d) An impact test specimen.
e) A spectrographic test. - correct answer -d) An impact test
specimen.
6. The cooling rate of aT-joint is:
a) Less than that in a butt joint.
b) Greater than that in a butt joint.
c) Greater than that in a butt joint only where the carbon
equivalent is high .
d) Greater at the mid-section than at the start.
e) Greater at the mid-section than at the finish. - correct answer -
b) Greater than that in a butt joint.
7. What are slag and non-metallic inclusions usually caused by?
a) Moisture in the weld joint.
b) High welding current.
c) Loss of shielding gas.
d) Inadequate interpass cleaning. - correct answer -d) Inadequate
interpass cleaning.
, Page | 4
8. Where deviations from the drawings are warranted the
inspector should do which of the following?
a) Authorize approval of the changes.
b) Obtain official approval for the changes.
c) Reject the work without any further consideration.
d) Stop the work until drawing revisions have been completed. -
correct answer -b) Obtain official approval for the changes.
9. With the appropriate electrode, which of the following welding
processes can operate with or without
a shielding gas:
a) Electrogas welding process.
b) Gas metal arc welding process.
c) Flux cored arc welding process.
d) Submerged arc welding process.
e) Pulsed gas metal arc welding process. - correct answer -c)
Flux cored arc welding process.
10. If there is inadequate penetration at the root of a double vee
groove, which of the following
statements best defines the reason for this:
