Single-unit air brakes practice quiz

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Single-unit air brakesQuestion 2 of 200

Correct0%0 of 2 answered

Incorrect100%2 of 2 answered

When the spring parking brake is applied and the service brake is released, what is the air state in the chamber?

AFull air pressure in both sections

BNo air pressure in either section; spring force applies the brakeCorrect answer

CAir pressure only in the service sectionYour answer

Incorrect.

Applying the parking control exhausts the spring section, and the released service section also contains no application air. (Guide p. 164)

Study aid only. These are not official ICBC exam questions, and practice scores do not predict an official test result.