Instrumentation Interview Questions
Questions Answers Views Company eMail

what is the name of thermocople element cable from field to pannel end?

3 4442

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

577

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 9439




what is the difference between cold loop and hot loop

2 8495

why we use 24v dc in instrument rahter than 230vac????

4 13980

why we use 0.2 to 1.0 kg/cm2 output in control valve

GNFC,

4 7361

in which application we use bigger size actuator

5 4120

diffrence b/w accuracy and precision?

HPCL,

4 4552




can we connect instrument earth pit to electrical earth pit, if not why?

2 12204

If we interchange HP and LP tapping in drum level measurement and reverse LRV & URV correspondingly.What is the difference between the normal tapping(HP,LP) and reversed tapping(LP,HP)?

2 9401

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

1235

what is control valve input and out put

Nirma,

9 11222

what is thermocouple output

IPCL,

7 5698

What is principle of ultrasonic level transmitter?

3 6460

what is formula for calculating flow if i have pressure and pipe diameter?

1029


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Un-Answered Questions { Instrumentation }

What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

346


plz send me general of ongc

537


i need some objective type questions in instrumentation

3057


Isometric drawings are generated during _________________ phase of a project

541


How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer

1249


What is super thermocoupal?

602


how do calibrate the valves.. with clear manual

500


what is intrinscily safe system and where we use?

1016


Why is a dead weight tester so called by that name?

735


I am teja. I am studying Msc(tech) Electronics and Instrumentation (3years course) in Andhra university. But my course is not recognised by UGC and AICTE. Please tell me the job opportunities after this course. And i fineshed PLC course in IGIAT ,Vizag.Also complted my short term coure in SCADA, Seimans WinCC in ATI,Hyd.After Msc can i join Mtech for good job? or phd. How i can get good job in INdustrial Automation Side. Please give replay.Because this is my life matter.

633


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

766


can you provide me full detail about instrumentation in ONGC??

712


Can anyone send most commonly asked interview question in Oil & Gas industry

722


For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

521


the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

490