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2. Air brake (road vehicle) - Wikipedia

   en.wikipedia.org/wiki/Air_brake_(road_vehicle)

   Truck air-actuated disc brake. An air brake or, more formally, a compressed-air-brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to both release the parking/emergency brakes in order to move the vehicle, and also to apply pressure to the brake pads or brake shoes to slow and stop the vehicle.

3. Railway air brake - Wikipedia

   en.wikipedia.org/wiki/Railway_air_brake

   A railway air brake is a railway brake power braking system with compressed air as the operating medium. [1] Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on April 13, 1869. [2] The Westinghouse Air Brake Company was subsequently organized to manufacture and sell Westinghouse's ...

4. Air brake (aeronautics) - Wikipedia

   en.wikipedia.org/wiki/Air_brake_(aeronautics)

   Often, characteristics of both spoilers and air brakes are desirable and are combined - most modern airliner jets feature combined spoiler and air brake controls. On landing, the deployment of these spoilers ("lift dumpers") causes a significant reduction in wing lift, so the weight of the aircraft is transferred from the wings to the undercarriage.

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6. Retarder (mechanical engineering) - Wikipedia

   en.wikipedia.org/wiki/Retarder_(mechanical...

   Exhaust brakes are simpler in operation than an engine brake.Essentially, the exhaust pipe of the vehicle is restricted by a valve.This raises the pressure in the exhaust system, forcing the engine to work harder on the exhaust stroke of its cylinders, so again the engine is acting as an air compressor, with the power required to compress the air being withheld from the exhaust pipe, retarding ...

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Decelostat - Wikipedia

   en.wikipedia.org/wiki/Decelostat

   Decelostat was the term used by Westinghouse Air Brake Company when it originally developed the system in the 1930s. [3] The term had then been used by the railway industry as a generic term to refer to wheel slide protection systems during the late twentieth century. [ 1 ]

9. Here’s the worst month to take a driving test in Texas, a new ...

   www.aol.com/worst-month-driving-test-texas...

   If you’re planning to get a drivers license in Texas soon, you should avoid taking the driving test in July. A new study revealed that 29,877 deaths or injuries resulting from fatal crashes ...