Practice question

Placards should be used:

  1. Any time a vehicle is carrying hazardous materials.
  2. If there is open space in the truck.
  3. If the amount of hazardous materials in the truck exceeds 200 pounds.
  4. If the hazardous materials create an inhalation hazard.

Answer: A — Any time a vehicle is carrying hazardous materials.

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Practice more: North Dakota CDL Class B Knowledge Test 1 →