Question

The air brakes system for a straight truck or bus should not leak at a rate of more than ______ psi per minute with the engine off and brake released?

1) 10
2) 20
3) 30
4) 40

Answer 1

The air brakes system for a straight truck or bus should not leak at a rate of more than 30 psi per minute with the engine off and brake released.

Step-by-step explanation:

The air brakes system for a straight truck or bus should not leak at a rate of more than 3) 30 psi per minute with the engine off and brake released.