Ontario Air Brake Z Test Practice Questions - Ontario Air Brake (Z Endorsement) Knowledge Test Exam

What happens in a service brake chamber when the brake pedal is pressed?

Air pressure moves the diaphragm and pushes the pushrod outward The supply tank drains completely The brake lining is automatically replaced The governor changes the vehicle rating

Correct Answer:

Air pressure moves the diaphragm and pushes the pushrod outward

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