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

For Michigan CDL air-brake testing, what is the function of the wet tank (supply or service reservoir)?

It cools brake fluid It is the first storage tank where moisture collects before air moves to the other tanks It supplies air only to the trailer It activates the parking brakes

Correct Answer:

It is the first storage tank where moisture collects before air moves to the other tanks

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