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 21 of 200

Correct33%7 of 21 answered

Incorrect67%14 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.Correct answer

CYes, if the red supply valve is closed.Your answer

DOnly on ABS-equipped trailers.

Incorrect.

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.