Control System Components — Summer 2018

Draw ISA Symbol for Pressure relief valve, Damper, Ball Valve, Safety valve, Relief Valve, Actuator

Draw ISA Symbol for various types of lines used in P&Idiagram.

Give explanation about following terms Flow Coefficient, Rangeability, Valve capacity, Galling, Flashing, Choking, Bonnet

Explain the Electrical power system used for control room.

Explain about control room layout

Give the classification of control panels. Explain Break Front Panel with sketch.

List the classification of compressor used for Instrument air supply and explain any one type in detail with sketch advantages and Disadvantages.

Explain with diagram about different Control valve flow characteristics.

List the criteria for the selection of control valves.

List out various control valve accessories. Explain any three control valve accessories with figure and its role in control valve operation.

What is the need of valve Positioner for the operation of control valve?

What is cavitation? Explain different valve noise problem.

List and sketch different types of control valve. Differentiate between single port & double port design of globe valve.

Compare electric safety and intrinsic safety with suitable example.

Explain P/I Converter with suitable sketch &Example.

Classify hazardous area and material according to N. E. C.

Explain V/I Converter with suitable Example.

Explain I/P Converter with suitable sketch &Example.

List and sketch different types of actuators in control valve explain any one in detail with example and sketch.

Difference between 2-wire transmitter and 4-wire transmitter..

Compare electric safety and intrinsic safety with suitable example

Enumerate various factors to be considered in designing good quality instrument air system. Explain the factors related to distribution of Instrument air.

Define recorder. Explain types of recorder with neat Sketch, its merit and demerits

Explain pneumatic transmitter with its application

Explain Function & its Types of Annunciator.