Itroduction to pneumatic system

What is pneumatic system?

• A system that uses compressed air to transmit and control energy to perform useful work

• A system that uses compressed air to control energy to perform useful work

• A system that uses air to transmit and control energy to perform useful work

Which is the correct statement about the pressure developed in the air compressor?

• The pressure generated is lower than atmosphere pressure.

• The pressure generated is depending on the temperature during the compression process

• The air from the atmosphere is reduced in volume by compression, thus increasing its pressure.

Pneumatic sytem is using ________ as a working medium.

• Oil

• Compressed air

• Water

Pneumatic system is preferred in food industry because  ______

• the cost is low

• it is using air as a medium which is available everywhere

• it is using unlubricated air which is clean

Picture below shows the ISO standard symbols for _______

• Flow control valve

• Directional control valve

• Pressure control valve

Why compressed air requires good preparation?

• So that pneumatic system is clean

• To protect the operator from dirt and dust

• To maximize performance and extend the life of the components doing the work in a pneumatic system

Name the component that is used to transform the potential energy of the compressed air into mechanical work.

• Actuator / cylinder

• Directional Control Valve

• Compressor

There are TWO (2) types of air dryer.

• True

• False

Which process is the following statement refers to?

"After final compression the air will be hot, when it cools it will deposit water in considerable quantities in the airline (pipe system) system which should be avoided.”

• Water cool

• Aftercoolers

• Absorption drying

• Adsorption drying

Symbol shown in figure below is a combination of ______________

• Air filter, regulator

• Air filter, regulator, check valve

• Regulator, lubricator

• Air filter, regulator, lubricator