Practice question

Pressing and releasing a brake pedal unnecessarily can:

  1. Release air faster than it can be replaced.
  2. Add more air to the braking system.
  3. Make the brake pedal more sensitive.
  4. Create a loud noise.

Answer: A — Release air faster than it can be replaced.

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

Practice more: Colorado CDL Double Test 2 →