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Question 37 - Alabama CDL Air Brakes discussion

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In a vehicle with dual parking control valves, once air pressure is lost and the spring brakes come on:

A.

You will be unable to move the vehicle.

B.

A separate air tank can be used to release the spring brakes for a short period of time.

C.

You can use the spring brakes to continue driving normally.

D.

The air tanks will automatically refill to a safe air pressure level.