Automation using Pneumatic systems

Which of the following is a component used in air generation system?

• Drier

• Pressure gauge

• Pressure switch

• Intercooler

Select the correct order of process occurring in pneumatic system

• 
• 
• 
• 

In pneumatic instrumentation systems the pressure of compressed air used is around

• 1 bar

• 1.4 bar

• 2.5 bar

• 5.5 bar

In a control system an error detector

• Detects the error and signal out an alarm

• Produces an error signal as the actual difference of value and desired value of output

• Detects the errors of the system

• AII the above

A good control system has all the following features except

• Good stability

• Good accuracy

• Slow response

• Sufficient power handling capacity

What is the characteristic of a good control system?

• Sensitive to parameter variation

• Insensitive to input commands

• Neither sensitive to parameter variation nor sensitive to input commands

• Insensitive to parameter variation nor sensitive to input commands

Fluid power circuits use schematic drawings to:

• Make the drawing look impressive

• Make it so only trained persons can understand the functions

• Simplify component function details

• Make untrained person to understand

Size of receiver depends on

• Delivery volume of compressor

• Air consumption

• Pipeline network

• All the above

------------------ is used to reduce the temperature of compressed air during the compression stages.

The filter cartridge is made of

• Sintered brass

• Bronze

• Aluminium

• Copper