Answer Posted / sai

Reset windup is a phenomena in Integral control wherin the
integration crosses 100% if it is not limited.
And it takes time to come back to normal....during this
time the process variable deviates from SP considerably.
Remedy is to limit Integration up to 100%.

A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

872

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What is the PLC configuration in Cement industry?

3258

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Explain signal isolator

744

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what is scale factor of proximitor & unit of the vibration.

1674

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what is the input to be given in digital flow meter during the the calibration time?

1731

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What is loop1 and loop2 in MTS LT?

3280

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Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

2367

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Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd

1627

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What are the types of valves?

614

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There are many type of control cable like pair,core,tried, What are defination each one

1727

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installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,

1656

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In turbine what does term CDP, NH, HSSOC means.

1326

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Explain types of valves?

658

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How many interlocks at turbine side?

1430

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Explain the working of an electronic level troll.

588

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