Free CDL Quiz

Division 4.3 materials are dangerous because of what property?

a.They are explosive
b.They are radioactive
c.They are dangerous when wet and can produce flammable or toxic gases upon contact with water
d.They are corrosive

Explanation

Division 4.3 materials are dangerous when wet. When these materials come in contact with water, they can produce flammable or toxic gases. Examples include sodium and potassium metals. They must be kept dry during transport.

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

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