Complete the following statement about pneumatic braking system operation using the following words. Words: Actuate, Air, Brake, Braking, Compressed, Convert, Discharges, Drives, Drums, Energy, Force, Foundation, Friction, Heat, Hydraulic, Mechanical, Operation, Out, Pedal, Retards, Tanks, Vehicle, Wheels Blank 1 brake operation is similar in some ways to hydraulic brake Blank 2 , except that compressed air is used to Blank 3 the brakes. The potential energy of an air Blank 4 system is in the Blank 5 air itself. The retarding effort delivered to the Blank 6 has nothing to do with mechanical Blank 7 applied to the brake pedal. The source of the potential Blank 8 of an air brake system is the Blank 9 engine, which Blank 10 an air compressor. The compressor Blank 11 compressed air to the vehicle air Blank 12 . The brake Blank 13 , actuated by the driver, meters (precisely measures) some of this compressed air Blank 14 to the brake chambers. Brake chambers are used to Blank 15 air pressure into Blank 16 force to actuate foundation brakes. Blank 17 brakes consist of shoes and Blank 18 or rotors and calipers that convert the mechanical force applied to them into Blank 19