What kind of force must emergency brakes use? Question What kind of force must emergency brakes use? Answers Air pressure Mechanical Heavy Electrical Explanation Because air pressure can eventually leak away, the emergency brakes in an air brake system must be held on by mechanical force. This questions appears in the following tests: Alabama Air Brakes Colorado Class A Knowledge Test Delaware Class A Knowledge Test Delaware Air Brakes District Of Columbia Class B Knowledge Test District Of Columbia Air Brakes Florida Class A Knowledge Test Georgia Air Brakes Kansas Class A Knowledge Test North Carolina Class B Knowledge Test North Carolina Class B Knowledge Test North Dakota Class A Knowledge Test Pennsylvania Air Brakes Pennsylvania Air Brakes South Carolina Double South Carolina Air Brakes Tennessee Class A Knowledge Test Texas Class B Knowledge Test Texas Air Brakes Utah Class A Knowledge Test Utah Class B Knowledge Test Utah Air Brakes
