Question

defination of penumatic shell

Answer 1

Pneumatics (From Greek: πνεύμα) is a branch of engineering that makes use of gas orpressurized air.

Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and electrically powered compressor powerscylinders, air motors, and other pneumatic devices. A pneumatic system controlled through manual or automatic solenoid valvesis selected when it provides a lower cost, more flexible, or safer alternative to electric motors and actuators.

Pneumatics also has applications in dentistry,construction, mining, and other areas.