Combination air brakes practice quiz

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Combination air brakesQuestion 21 of 200

Correct76%16 of 21 answered

Incorrect24%5 of 21 answered

May manual slack adjusters replace factory automatic adjusters on a B.C. tractor or trailer?

AYes, on every tandem axle.

BNo, the retrofit is illegal.Your answerCorrect answer

CYes, if the red supply valve is closed.

DOnly on ABS-equipped trailers.

Correct.

B.C. enforcement rules prohibit retrofitting manual adjusters where automatic slack adjusters were installed by the manufacturer. (Guide p. 198)

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