Recent questions tagged instrumentation-interview

What is a thyristor ? What are its uses ?

How will you test a transistor with a multimeter. ?

What is CB, CE and CC configuration ?

What is transistor ? What are the different types ?

What is zener Diode ? What is a voltage Regulator ? almost vertical Diodes with almost vertical breakdown region are known as Zener Diodes.

What is a filter used for ?

What is a diode ?

What is force balance and motions balance principle ?

What does a transmitter output stantfrom 3-15psi or (0.2 - 1 Kg/Cm2) or 4 - 20 m.a. etc ?

What are Intrinsically safe system ?

What is feed back control ? What is feed forward control ? Discuss its application ?

What is Furnace Draft control ?

Explain ratio control system.

Explain Cascade Control system with a diagram. What would happier if a single controller were used?

Why does control valve operate at LSpsi ?

Where is an Air to close and Air to open control valves used ? AIR TO CLOSE :

An operator tells you that a control valve in a steech ? How wiil you stent checking ?

How will you select the control valve characteristics ?

How will you change the action of a control valve ?

How will you change the valve characteristics with positioner ?

What is a solenoid valve ? Where it is used ?

What are the different valve characteristic ?

What are the different types of plugs ?

What are the advantages of comflex valves ?

What is a cage valve ?