CDL Practice Tests

Class B CDL Practice Test #1
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Question #1 of 70

Class B CDL Test Question Image

How can you check slack adjusters?


You can not manually check slack adjusters.

Frequently check the low-pressure gauge.

Use an adjustable wrench.

Pull hard on each slack adjuster.



Class B Commercial Driver’s License

You will need a “Class B” commercial driver’s license if you plan to drive any single vehicle which has a gross vehicle weight rating or gross vehicle weight of 26,001 pounds or more, or any such vehicle towing a vehicle with a gross vehicle weight rating or gross vehicle weight that does not exceed 10,000 pounds.

Source: Federal Motor Carrier Safety Administration.


 

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