Practice question

To make a stop in a vehicle using air brakes, the driver should:

  1. Press down the brake pedal.
  2. Lift the brake pedal toward them.
  3. Push in the brake knob.
  4. Pull out the brake knob.

Answer: A — Press down the brake pedal.

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

Practice more: Massachusetts CDL Class B Knowledge Test 2 →