Question 8 of 20
Score: 0/0For a combination vehicle with the engine off and brakes released, what is the maximum air leakage rate allowed?
ExplanationThe air leakage rate for a combination vehicle (engine off, brakes off) should not exceed 3 PSI per minute. Excessive air loss indicates a problem with the air brake system.
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Did you know? A high, loaded trailer rolls easily — gentle steering and braking is the recurring answer.
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