Question The brake pedal is part of which braking system? Answers The service brake system The parking brake system The emergency brake system The auxiliary brake system Explanation The service brake system applies and releases the brakes when a driver presses the brake pedal while driving normally. Take a FREE Practice Test Now This questions appears in the following tests: Connecticut Knowledge Test Class A , Georgia Knowledge Test Class A , Illinois Knowledge Test Class A , Nevada Knowledge Test Class B , Kansas Passenger , Delaware Air Brakes , District Of Columbia Air Brakes , Tennessee Air Brakes , Utah Air Brakes ,