Free CDL Quiz

What should you inspect on your tires during a pre-trip inspection?

a.Only tire pressure
b.Tread depth, air pressure, cuts, bulges, and proper inflation
c.Only whether the tires are the correct size
d.Only that the valve stems are present

Explanation

During a pre-trip inspection, tires should be checked for proper tread depth (minimum 4/32 inch on steer tires, 2/32 inch on other tires), correct air pressure, cuts, bulges, missing valve caps, and signs of uneven wear.

← Back to Class B CDL Knowledge Test #1

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

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