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Home/Practice quizzes/Combination air brakes

Combination air brakes practice quiz

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

Combination air brakesQuestion 17 of 200
Correct6%1 of 17 answered
Incorrect94%16 of 17 answered

What happens immediately if only the trailer control line separates?

AThe tractor loses all reservoir airYour answer
BThe trailer reservoirs instantly refill
CNothing until a trailer brake application, when tractor protection activatesCorrect answer
Incorrect.

A broken control line leaks application air only when a brake signal is sent. (Guide p. 177)

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