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Home/Practice quizzes/Single-unit air brakes

Single-unit air brakes practice quiz

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

Single-unit air brakesQuestion 27 of 200
Correct19%5 of 27 answered
Incorrect81%22 of 27 answered

What is the required air-pressure build-up performance?

A50 to 90 psi within three minutes at 1,000 to 1,200 rpmCorrect answer
B90 to 150 psi within ten minutes with the engine off
C20 to 45 psi in one minute at idleYour answer
Incorrect.

The compressor must build pressure from 50 to 90 psi within three minutes at a fast idle of 1,000 to 1,200 rpm. (Guide p. 152)

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