Hydraulics are used in many ways. Most of them are used everyday and not even thought about.
Here are some examples of how hydraulics are used. They are all machines ( I'm a mechanical engineer! :P)
The red arrows on some pictures show the place where hydraulics are used.
Car Brakes
library.thinkquest.org/ C007574/data/hydraulic.htm
Car brakes work when you push the brake pedal, it pushes the small piston. The piston applies pressure on the brake fluid, which press the brake pads on the large pistons. The brake pads come into contact with the brake drum and slows the car down, eventually stopping the car.
Airplanes
Airplanes and jet planes use hydraulics in many places.
http://www.nvidia.com/docs/IO/15014/landing_gear_full.jpg
- Adjusting wings
- Putting out/bringing in landing gear
- opening/closing doors
Heavy equipment use hydraulics very obviously. There is very little limit to their power.
www.universalgroup.com/ dumptruc.htm
www.toughquip.com/images/ sce/Motor%20Grader.JPG
www.user.dccnet.com/ cooperheavyeq/
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