CWB Level 1 Exam (Latest 2026/2027 Update) 120 Actual Exam Questions with 100% Verified Answers | Canadian Welding Bureau Inspector Certification| Graded A+

CWB Level 1 Exam (Latest 2026/2027
Update) 120 Actual Exam Questions with
100% Verified Answers | Canadian Welding
Bureau Inspector Certification| Graded A+
Question:
1. Which is not a recommended method for surface cleaning of a part for
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liquid penetrant examination?
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a) Cleaning with organic solvents.
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b) Blasting with shot or dull sand.
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c) Cleaning with de-greasers.
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d) Use of de-scaling solutions.
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e) Ultrasonic cleaning methods.?
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Answer:
b) Blasting with shot or dull sand.
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Question:

2. Which of the following weld defects is most likely to be missed by
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radiography in a weld: i,- i,- i,-




a) Undercutting.
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b) Porosity.
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,c) Slag inclusions.
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d) Cracking.
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e) Burn through .?
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Answer:

d) Cracking.
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Question:

3. In the choices given below, metallographic tests would be the least
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informative with regard to the: i,- i,- i,- i,-




a) Presence of the non-metallic inclusions.
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b) Grain structure in the weld and fusion zone.
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c) Ability of the material to withstand repeated fluctuating loads.
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d) Extent and structure of the heat affected zone.
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e) Number of weld passes.?
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Answer:

c) Ability of the material to withstand repeated fluctuating loads.
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Question:

4. In producing a drawing for a scale of 1:50, what would be the distance
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represented by a distance on i,- i,- i,- i,-




the drawing of 6 em?
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,a) 12 cm.
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b) 30 cm.
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c) 50 cm.
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d) 240 cm.
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e) 300 cm.?
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Answer:

e) 300 cm.
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Question:
5. The mechanical test used to determine the ability of a material to resist
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failure by brittle fracture
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requires the use of: i,- i,- i,-




a) A tensile test specimen.
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b) A bend test specimen.
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c) A compression test specimen.
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d) An impact test specimen.
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e) A spectrographic test.?
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Answer:

d) An impact test specimen.
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Question:

, 6. The cooling rate of aT-joint is:
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a) Less than that in a butt joint.
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b) Greater than that in a butt joint.
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c) Greater than that in a butt joint only where the carbon equivalent is
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high . i,-




d) Greater at the mid-section than at the start.
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e) Greater at the mid-section than at the finish.?
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Answer:

b) Greater than that in a butt joint.
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Question:
7. What are slag and non-metallic inclusions usually caused by?
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a) Moisture in the weld joint.
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b) High welding current.
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c) Loss of shielding gas.
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d) Inadequate interpass cleaning.?
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Answer:

d) Inadequate interpass cleaning.
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Question: