Michigan CDL Air Brakes Practice Questions - Michigan CDL Air Brakes Knowledge Test Exam

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For Michigan CDL air-brake testing, after a long downgrade, your brakes feel weak or 'spongy'. What is the most likely cause?

A loose mirror Brake fade from overheated drums and linings; you should pull over safely and let the brakes cool Underinflated tires High oil pressure

Correct Answer:

Brake fade from overheated drums and linings; you should pull over safely and let the brakes cool

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