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Home/Practice quizzes/Single-unit air brakes

Single-unit air brakes practice quiz

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Single-unit air brakesQuestion 2 of 200
Correct50%1 of 2 answered
Incorrect50%1 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 brakeYour answerCorrect answer
CAir pressure only in the service section
Correct.

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

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