Answer Posted / thirumalai

mantaince in software side is about the DCS backup of histroy data , ERDB file eys

the pump holds on run indication into the dcs and filed local control panel remote push button condition operaton wrong like when the push button pushing conditions the pump is off and the push button release condition the pump is on totally opposite condition . And control room inside give the stop command into dcs just 1secon relay engage and again normal condition. How can I slove

1634

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why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

1987

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how many maximum enter 2mm Dia solid cylindrical pipe into 8mm Dia hollow cylindrical pipe. give answer with calculation.

1989

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why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V

2385

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please can any one tell me clearly about pid tuning i am confusing about this .how to tune pid easly?

2179

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What is 3 element control system

1439

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Explain the key components of control loop?

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-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

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can anyone guide me how to get any of the previous year GAIL question papers? are they available? 0n 2nd august i have to take the written test.

1851

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Draw a group of instruments interlocked to a Pump & Motor?

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2178

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How to Calibrate Level Switch in field

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