BC Class 1 Commercial Practice Questions - British Columbia ICBC Class 1 Commercial Driver Knowledge Test Exam

How do spring parking brakes normally apply?

Spring force applies the brakes when air is exhausted from the spring brake chambers Electrical current pulls the trailer backward Fuel pressure pushes the brake linings away from the drum The driver must hold the hand valve forever

Correct Answer:

Spring force applies the brakes when air is exhausted from the spring brake chambers

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