Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

How to work DCS? how to get the signal from Field Instruemtns to PIB to Console?

Alstom, Invensys,

2 11560

What is Positive Calibration and Negative Calibration?

SA Kent,

2181

what is RTV function in in process control?

Colgate,

3059

why ultra sonic level transmitter is installed in 90 degree?

ME,

2 5785

what are the following documents comes under loopchecking

Heisco,

1 4556

how to know the URL and LRL for steam drum level and why the calibration range is in negative ?

JSW, Samsung,

1 9538

What is two wire system and how it work

Bhel, IFFCO,

2 7223

How to convert 4 wire level transmitter connection to 2 wire.

2 6618

Is it possible to convert 4 wire transmitter to convert to 2 wire with additional relay.Please send detial with drawing,i will appreciate.

2 7326

a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

2 4625

What is the maximum distance limit of 4-20mA and 0-10V DC standard signal transmission ?

BARC, ME,

3 17482

What should we do when Fisher Fieldvue DVC2000 give some out put air at 4mA bt at that i need no out put

1 2523

applications of 1-5v and 4-20ma?

4 8047

I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.

2219

How to change dcs card in online. (Dsc is maxdna)

3 6543

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Un-Answered Questions { Instrumentation }

wich is coming the first HAZOP OR SIL

2704

How to Calibrate Flammable gas detector in field

1142

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

2390

what is zero and span ?

1607

Define cryogenic?

1090

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

1639

How is work 5/2 sov?

1824

sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

2409

Name different types of bourdon tubes.

1079

we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

2561

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.

2035

Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

1576

What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

3343

what are the different types of Protocols? & their applications.

30423

Please tell me details about Sox,Nox,SWAS analyser????

3678

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