Practice question

Is it correct to use the parking brake to slow or stop the vehicle while driving?

  1. Yes, in emergencies
  2. Yes, on icy roads
  3. No — the parking brake should never be used to slow a moving vehicle
  4. Yes, on long downgrades

Answer: C — No — the parking brake should never be used to slow a moving vehicle

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

Practice more: Ohio CDL Air Brakes Test Practice Questions - Ohio Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →