Where must hazmat placards be displayed on a vehicle?

a.On the front and back only

b.On both sides and both ends of the vehicle

c.Only on the back of the vehicle

d.Only on the driver side

Explanation

Placards must be displayed on both sides and both ends of the vehicle, for a total of four placards. This ensures the hazardous material can be identified from any direction.

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

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