Practice question

A cardboard box on the roadway:

  1. Is not a cause for concern.
  2. Is usually empty.
  3. May contain a heavy object that could damage your vehicle.
  4. Should be avoided by driving off the roadway.

Answer: C — May contain a heavy object that could damage your vehicle.

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

Practice more: New Jersey CDL Class B Knowledge Test 1 →