⚠️CDL HAZMAT — Question 4 of 20

A vehicle placarded for hazardous materials must have placards on ____ sides.

Answer: A

4

HazMat placards placed on all four sides of the vehicle to indicate the classification of the substance. This will be on both sides of the vehicle plus the front and rear.

All choices

  • A4
  • B2
  • C3

Why the other answers are wrong

B. 2

Placards must be on all four sides, not just two sides, to properly identify hazardous materials.

C. 3

Three sides is insufficient; placards are required on all four sides of the vehicle.

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CDL HAZMAT Test Info

Questions on Exam

30

Passing Score

80%

Time Limit

Typically 30 minutes; varies by testing location

The HAZMAT test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.

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