Combination air brakes practice quiz

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Combination air brakesQuestion 27 of 200

Correct44%12 of 27 answered

Incorrect56%15 of 27 answered

Why should the tractor and trailer ABS lamps be observed when the tractor is first started?

AThe systems perform an electrical self-check at startup.Correct answer

BThe lamps confirm that both glad hands are colour-coded.

CThe lamps set compressor cut-out pressure.Your answer

DThe lamps mechanically lock the fifth wheel.

Incorrect.

ABS warning lamps illuminate or cycle during the startup self-check and should then follow the manufacturer's normal sequence. (Guide p. 185)

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