Practice question

Class 1, Class 2.1, and Class 3 items should not be placed in a trailer with:

  1. A heater.
  2. An air conditioner.
  3. Other items.
  4. Batteries.

Answer: A — A heater.

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: District Of Columbia CDL HazMat Test 1 →