Practice question

When refueling a vehicle that contains hazardous materials:

  1. The engine should be left on.
  2. The engine should be turned off.
  3. The gas nozzle may be left unattended.
  4. No other vehicles should be at the refueling station.

Answer: B — The engine should be turned off.

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

Practice more: West Virginia CDL HazMat Test 2 →