CWB Level 2 Exam (Latest 2026/2027 Update) 300 Questions with 100% Verified Answers | Canadian Welding Bureau Inspector Certification| Graded A+

CWB Level 2 Exam (Latest 2026/2027
Update) 300 Questions with 100% Verified
Answers | Canadian Welding Bureau
Inspector Certification| Graded A+
Question:
What is the term for voltage measured across the output terminals of a
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welding machine when no current is being drawn?
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A. diode voltage
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B. operating voltage
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C. open circuit voltage
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D. terminal voltage?
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Answer:
C. open circuit voltage
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Question:

A 60% duty cycle means that the power supply can deliver its rated
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output for: i,-




A 60% of the rated output only
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B. 60% over the rated output followed by 4 minutes at rest
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,C. 6 minutes at rest followed by 4 minutes at rated output
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D. 6 minutes at rated output followed by 4 minutes at rest?
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Answer:

D. 6 minutes at rated output followed by 4 minutes at rest
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Question:
One of the simplest ways of controlling the output of a welding
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transformer is to change the efficiency of coupling between the primary
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and secondary coils. How can this be done?
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A) slide a piece of wood between the primary and the secondary coils
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B) design the transformer with either a moving core or moving primary
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coils
C) design the transformer with a number of taps to select different output
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curves
D) use the timed firing of SCR's to control total conduction time?
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Answer:

B. design the transformer with either a moving core or moving primary
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coils




Question:

When choosing between AC and DC output;
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,A. the process generally determines the type of current
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B. high current output machines are always both AC/DC
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C. DC is generally used for very high output applications
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D. most supplies are equipped with constant voltage/constant current
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options?

Answer:

A. the process generally determines the type of current
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Question:
Which of the following metals has the lowest electrical resistivity?
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A aluminum
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B. tungsten
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C. copper
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D. iron?
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Answer:

C. copper
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Question:
What is the purpose of an inverter?
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, A. to convert AC current to DC current of the same frequency
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B. to convert DC current to high frequency AC current
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C. to convert AC current to DC current
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D. to convert electrode positive to electrode negative?
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Answer:

C. to convert AC current to DC current
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Question:

In parallel electrical circuits, the voltage across each resistor is the same
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since each path is connected to the same voltage source. Select the
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correct statement. i,-




A. in each parallel path the resistance must be equalized to create equal
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voltage.

B. the current flowing in each parallel path must be the same as the
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voltage. i,-




C. the current flowing in each parallel path depends on the resistance in
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each path
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D. the current flowing in each parallel path depends on the capacitance in
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each path?
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Answer:

C. the current flowing in each parallel path depends on the resistance in
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each path
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Question: