Practice question

What should a driver do if the air brake system fails during the brake test?

  1. Continue driving until the issue resolves.
  2. Stop immediately, inspect for issues, and report to the supervisor.
  3. Use manual braking to continue operating.
  4. Increase air pressure and continue.

Answer: B — Stop immediately, inspect for issues, and report to the supervisor.

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

Practice more: CDL Air Brakes Endorsement Test →