Combination air brakes practice quiz

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Combination air brakesQuestion 19 of 200

Correct47%9 of 19 answered

Incorrect53%10 of 19 answered

For at least how long must a relay-emergency trailer's brakes remain applied after dynamiting?

AFive minutesYour answer

BFifteen minutesCorrect answer

CThirty minutes

Incorrect.

Motor vehicle safety standards require these systems to remain applied for at least 15 minutes. (Guide p. 170)

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