The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:

The air loss rate for a straight truck or bus with the engine off and the brakes on should not be more than:



A. 1 psi in one minute

B. 2 psi in 45 seconds

C. 3 psi in one minute



Answer: C. 3 psi in one minute


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