Chapter 3 : Let test your memory

Which one below is the applications for the control valve in industry?

• Food & Pharmaceutical

• Power Generation

• Water & Sewage

• All answers

Give the definition of Control Valve

• Control valves are valve used to control conditions such as pressure, temperature and liquid level by fully or partially opening or closing in response to signals received from controllers.

• Control valves are valve used to control conditions such as flow, pressure, temperature and liquid level by fully or partially opening or closing in response to signals received from controllers.

• Control valves are valve used to control conditions such as flow, pressure and liquid level by fully or partially opening or closing in response to signals received from controllers.

• No correct answer given

The control valve components are stated below EXCEPT :

• valve back

• trim

• seat

• actuator

Which one below is NOT the types of control valve:

• Butterfly valve

• Ball valve

• Angle Valve

• Cylinder Valve

Which one below describe an advantage of Butterfly valve:

• Low pressure drop

• Heavy

• Big

• High actuation forces

Which answer best describe the disadvantages of Ball Valve:

• High leakage

• Quick open may cause hammer

• Small rapid opening

• High pressure drop

Which answer best describe the Angle Valve characteristics EXCEPT:

• Angle valves are nearly always single ported

• Have a high flow capacity

• The ports of the angle valve are oriented at an angle 45 deg

• The angle valve gives a normal flow