Free CDL Quiz

What condition of a leaf spring would require the vehicle to be placed out of service?

a.A spring with minor surface rust
b.A cracked or broken leaf spring or a missing leaf
c.A spring with normal wear
d.A leaf spring with grease on it

Explanation

A cracked or broken leaf spring or a spring with any leaves missing is a serious safety defect. This weakens the suspension and can lead to loss of vehicle control or axle shift, requiring the vehicle to be placed out of service.

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

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