cdl practice test

Air Brake Practice Test 2

Learning Series

Question #1 of 33

Which factors will not cause brakes to fade or fail?

A. Brakes can fade or fail from excessive heat caused by using them too much.

B. Brakes that are out of adjustment.

C. Using the engine brake and not using the brakes often enough can cause them to fail.

D. Mismatched retread tires on a trailer.

A and B.

C and D.

B and D.

All of the above.

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