Saskatchewan Air Brake Practice Questions - Saskatchewan Air Brake (Endorsement A) Exam

What happens to the spring brakes when the driver pulls out the parking brake control valve?

High air pressure is sent into the chambers to apply the brakes The caging bolts are automatically unscrewed Air pressure is exhausted from the chambers, letting the springs apply the brakes An electrical signal locks the mechanical slack adjusters

Correct Answer:

Air pressure is exhausted from the chambers, letting the springs apply the brakes

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