Answer Posted / james

Based on the process
1st If barrier fails before escalating to a incident - The answer is fail safe c/v CLOSE
2nd when barrier fails - fail safe action done - Then the fail safe action will be - c/v OPEN to atm / flair

while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

1903

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how to turbine speed measurement?

1587

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how the arrangement of equipments done in control room

2003

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In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1983

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any one can send me instrumentation previous interview papers? I prepare for MNC Company Interviews? my mail id- Rakesh.Golla@dodsaldxb.ae , and another mail rakesh.gvk@gmail.com

1966

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What is Cavitation in a control valve?

2069

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Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1922

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2064

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I need to know steps to Calibration Valve Guard......

1496

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What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.

2674

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List three types Level Switches with their working principles

2142

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how to calculate control valve bonnet size?? or how to select its material?

2442

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how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

1895

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DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

1904

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hye SAM acn u send your e mail id, so that i can solve my query through e mail?

2258

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