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Home/Practice quizzes/Combination air brakes

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 6 of 200
Correct50%3 of 6 answered
Incorrect50%3 of 6 answered

How does a wedge brake force its linings against the drum?

AThe wedge pushrod moves between two rollers.Correct answer
BA slack adjuster rotates an S-cam.
CA hydraulic caliper squeezes a rotor.Your answer
DThe trailer supply line expands the drum.
Incorrect.

Air-chamber movement drives the wedge between rollers, spreading the linings into the drum. (Guide p. 178)

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