Free CDL Quiz

Should you use the front brake limiting valve in the normal or slippery position during normal driving?

a.Always in the slippery position
b.Always in the normal position to have full front braking power
c.It does not matter
d.Only use it when going uphill

Explanation

The front brake limiting valve should be kept in the normal position during everyday driving to take full advantage of front brake stopping power. Reducing front brake pressure unnecessarily increases stopping distance. Many experts advise removing these valves.

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About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

This question is from the Class B CDL Air Brakes Test #2 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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