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Instrumentation Interview Questions
Questions Answers Views Company eMail

If we increase D what will be the controller action?

 2 4365

Can anybody explain what is the different between ESD & PLC

ADCO,

1 2410

what are the possible reasons if a control valve fails to open/close?

DEWA,

1 6479

Can anybody explain about wellhead control system.

 1 2159

What is the different between ESD & PLC.

 1 5526

why temperature transmitter is showing ambienttemp.but 21.5ma. alarm AO showing at the display &how to sloves this problem.

 2 5044

what does mean by analog output trim and where this one used for?

 1 7692

Which boiler is use in power plant

Jindal,

1 4772

what sud u do if u dont get feedback from control valve?

Siemens,

1 6685

what is difference between positioner and position transmitter in control valve

 2 13912

suppose, after calibrating a transmitter we fixed it in a process line. At live zero condition the Tx shows 4.5 mA. what should we do to make the Tx show 4 mA? If we adjust zero, will it not affect the calibration?

ABG Shipyard,

4 6503

Sitrans LR460 Radar level transmitter getting level out or disturbed level during moisture present in the material ie coal in the pccb bunker in CHP.Any suggestions for this problem...????

ABG Shipyard,

1 3773

Explain , how timer based pneumatic control valve will work ?

 1 2965

what are the documentation and instrument identification system used to identify the correct device to be calibrated? name atleast three.

 1 6164

please someone tell me what is function of vibration sencer and how many types and how to control viberation.please. my id is jimmykhan077@gmail.com

 1356

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Un-Answered Questions { Instrumentation }

If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?

1616

WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

2072

Why do we floating DC in DC system.

2372

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.

1453

What is frequency factor in massflow meter? When using frequency output?

1310




i want to know the interview format fot gail, instrumentation. pls answer me in habib.sami1003@gmail.com

2654

how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??

1314

Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

1441

what is the usage of QDV & VOLUME BOOSTER

1767

components of control circuit belongs to control valve

1227

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

1621

I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.

1632

why using negative supply for bentley nevada vibration system ?

1702

in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?

2685

How to calculate mmwc values into tonnes?

763

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