Free CDL Quiz

What should you do if the low air pressure warning comes on while driving?

a.Continue driving to the next rest stop
b.Speed up to build air pressure faster
c.Stop and safely park as soon as possible
d.Turn off the warning light and continue

Explanation

If the low air pressure warning activates while driving, you should stop and safely park as soon as possible. Continuing to drive risks a further drop in pressure, which will cause the spring brakes to lock up suddenly, possibly causing a loss of control.

← Back to Class B CDL Air Brakes Test #2

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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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