Free CDL Quiz

What is the minimum fire extinguisher rating required for most commercial motor vehicles?

a.2 A:B
b.10 B:C
c.5 B:C
d.3 A:B:C

Explanation

All commercial motor vehicles are required to carry a fire extinguisher with a minimum rating of 5 B:C or higher. The B:C rating means it is effective against flammable liquid and electrical fires.

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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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