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

Instrumentation Interview Questions

Questions Answers Views Company eMail

how control valve works?

Qatar Airlines,

7 26963

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

Essar, Sail,

2196

Can any body give detail about orifice sizing?

Essar,

5 10545

what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.

Sabic, Saudi Aramco Shell Refinery Company SASREF,

2347

how to callibrate a new i/p converter

TATA,

7 14031

defination of plc? why we use plc? application of plc? advantage of plc?

4 21207

what is plc? Basic function of plc? application of plc in industry? What is lader diagram ? What is the main advantage to use plc in industry?

Schlumberger,

15 106223

what is the difference between RS 232,RS 485,RS 422, how they different from each other

TCS,

15 46513

HOW TO CHECK THERMOCOUPLE AND RTD & WHAT IS THE DIFFERENCE BETWEEN THERMOCOUPLE AND RTD

14 99306

A differential transmitter is calibrated to measure the flow of lquied, explain what wil happen if the fluid is not pure but contains some bubble?

2 6964

Sir i am studying M.sc,(Tech.)Electronics and Instrumentation in Andhra university.What is the offers for me?

4 8591

how to check thermocouple ,its working or not?

Coca Cola, Ford, Honeywell,

14 51991

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.

2611

What is the difference between HMI and MMI?

16 43709

why bevelling is done in an orifice ?

ABB,

4 10533

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Un-Answered Questions { Instrumentation }

How to calibrate the flow transmitter

1610

why Fahrenheit unit of moistur analyzer transmitter

2239

please tell no. & add. of consultancy who recruit me in power plant as instrumen engg. present i m working in power plant as ass.t instrument engg. thanku mahesh 09226562826

2088

Please asked me How calculate DCS controller memory.

2777

What is voltage regulator?

1104

which type of zones used for boiler? & why ?

1865

what is compensation? temprature & pressure

2016

kindly sent some demo question and answer

2069

what is effect of specific gravity in differential level transmitter , explain formula related with this .

1653

what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...

2011

Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor

2141

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

3728

is there any digitel grevity meter availaible in the market by which we can measure specific gravity of a battery?

2218

What is the purpose of the analyzer in petrochemical plant?

3875

Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

2849

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