Combination air brakes practice quiz

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Combination air brakesQuestion 2 of 200

Correct50%1 of 2 answered

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How can the driver help identify the supply reservoir among the tractor tanks while draining?

ADisconnect the trailer control line and watch the ABS lamp.

BMeasure the fifth-wheel height.

CWatch the dashboard pressure gauges as each reservoir is drained.Your answerCorrect answer

DApply the hand valve while the engine is off.

Correct.

Gauge response during draining can help distinguish the supply reservoir from the primary and secondary service reservoirs. (Guide p. 205)

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