SGI Class 1 Practice Questions - Saskatchewan Class 1 Commercial Driver Licence Written Exam

What is the purpose of the 'spring brakes' in an air brake system?

To act as parking brakes and emergency brakes if air pressure is lost To absorb road shocks from potholes To cool down the brake drums during heavy braking To speed up brake application time

Correct Answer:

To act as parking brakes and emergency brakes if air pressure is lost

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