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Home/Practice quizzes/Class 1

Class 1 practice quiz

Choose an answer, read the explanation, then continue to the next question. Your results include a review of every answer.

Class 1Question 30 of 200
Correct37%11 of 30 answered
Incorrect63%19 of 30 answered

During the air-brake system test, by what pressure must the governor cause the compressor to cut in?

ABefore pressure falls below 45 p.s.i.Your answer
BOnly after pressure falls below 60 p.s.i.
CBefore pressure falls below 80 p.s.i.Correct answer
Incorrect.

The governor must cause compressor cut-in before reservoir pressure drops below 80 p.s.i. (552 kPa). (Guide p. 208)

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Study aid only. These are not official ICBC exam questions, and practice scores do not predict an official test result.