MaRoCaVa

1. Define hydraulic. The study of pressure in liquids

2. Define pneumatic. The study of pressure in gases

3.What are four hydraulic devices bulldozers,car crushers,jaws of life,and backhoes

4. What are four pneumatic devices rock drills,pavement cruchers,paint srayers,and blast cleaners

5, How do hydraulic systems work. Force that is applied that trasmits to other useing a incommpresable fluid and a oil of some sort. The force is always multiplyed.

6. How do pneumatic systems work. You need a air compresser that mioxes air. Air from compresser enters a cylinder once the air pushes the cylinder it can eithe stop, cuttingof the air pressure.

7.What are the major diffrences in a hydraulic and pneumatic systems. Pneumatic systemsare operated with commpressed air, they are also louder because the gas s under preesure while a hydarulic system is operated with pressureized hydraulic oil and usaly produced higher control forces. Hydraulic systems have a piston and pneumatic systems have a pump.