CDL Combination Vehicle Test at Michigan 2025 – Test #3
If air pressure is not built up within the correct amount of time, then:
The braking power of the spring brakes:
If you do not have automatic tank drains, how often should you drain the oil and water from the bottom of the compressed air storage tanks?
To check the free play of manual slack adjusters of S-cam brakes, you should park on:
A straight truck or bus air brakes system should not leak at the rate of more than ___ psi per minute with the engine off and the brakes released.
Which of these in NOT a proper time to apply the parking brakes?
Michigan 2025 Commercial Driver's License computer test
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