How do you test the parking brake during Step 7?

a.Press the service brake pedal

b.Engage the parking brake, then gently try to move the vehicle in a low gear

c.Rev the engine

d.Flash the headlights

Explanation

To test the parking brake, apply it with the vehicle stopped, then gently try to move the vehicle forward in a low gear. The parking brake should hold the vehicle in place. If it does not, the parking brake needs repair.

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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 Knowledge Test #2 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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