CDL Practice Tests

Class B CDL Practice Test #2
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Question #1 of 66

Class B CDL Test Question Image

Why should air tanks be drained every day?


Air tanks should never be drained.

To keep oil and water from building up in the tank.

To keep oil and toxic gas from building up in the tank.

To keep the tanks cool while not in use.

All of the above.

None of the above.

 

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