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 11732

What is Positive Calibration and Negative Calibration?

SA Kent,

2245

what is RTV function in in process control?

Colgate,

3123

why ultra sonic level transmitter is installed in 90 degree?

ME,

2 5893

what are the following documents comes under loopchecking

Heisco,

1 4653

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

JSW, Samsung,

1 9617

What is two wire system and how it work

Bhel, IFFCO,

2 7349

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

2 6732

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 7436

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 4737

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

BARC, ME,

3 17641

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

1 2614

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

4 8202

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

2268

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

3 6692

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Un-Answered Questions { Instrumentation }

Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?

2235

what is thermo coupler and how it works

6085

line up procedure for dp type flow transmitter?

1900

Coal mill Instruments Equipments for cement plant And process diagram ?

2920

Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

1402

what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

2161

What is the difference between ff transmitter and non ff transmitter

2438

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.

2606

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

1638

what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other

2181

hi my name is rakesh patel i just complited my be in instrumentation & control now i am going to working as a validation engineer in a poject department so what is a scope in a future as a validation engginer ? what line is good for me can any bady give me complete solution please? your regard rakesh patel

1966

What is first echo & echo window in radar type level transmitter?

1688

how to turbine speed measurement?

1582

i am having information technology branh ....... can i prepare for psu exam

2219

detail of mass flow meter pricipal

2299

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