Question To stop a vehicle using air brakes: Answers The brake pedal should be pressed. The brake pedal should be lifted. The brake knob should be pulled out. The brake knob should be pushed in. Explanation To stop normally in a vehicle with air brakes, press down the brake pedal. Take a FREE Practice Test Now This questions appears in the following tests: Massachusetts Knowledge Test Class A , West Virginia Knowledge Test Class B , New Hampshire Air Brakes , North Dakota Air Brakes , Wyoming Air Brakes ,