Instrumentation Interview Questions
Questions Answers Views Company eMail

What are the key components of control loop?

1 6493

what is the meaning of wet leg & where is it used?

1 7429

What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 3537

please anyone suggest me some good intools training institutes with their place and contact nos.

Thermax, ABB,

1 2117

square root calculation for dp flow transmitter? give me a explanation with example

3 33680

plz... clarify my answer, how to calibrate vaccum (DP)leveltransmitter,it is hart. (digital).DETAILS:(coloumn)closedtank height 2650mm,and tx range is 0-1500mmH20.


1 2608

what happen if i install my pressure transmitter below the elevation of pipe in natural gas service. Also support your answer


3 4779

What is Cryogenic?

2 2785

What are the automatic controller MODES?


2 7672

what is coriolis principle for mass flowmeter?


5 8195

why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?


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.



how to use level tranasmitter in closed tank application.?


3 4055

with the help of suitable diagrams different types of control valves

1 2112

if we have 450 mm heigth boiler drum level ,so what is span & zero value for a dpt tranmitter

4 6856

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Un-Answered Questions { Instrumentation }

Hi Friends , i need one urgent help , i am preparing for entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?


What is Positive Calibration and Negative Calibration?


why is an oxygen sensor used in a boiler stack


Can anybody please let me know Orifice plate sizing calculation formula and step by step procedure


How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?


A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.


, Instrument Index, P&ID review, I/O schedule, datasheet, DCS / Analyzers specifications, loop diagrams, hook-up drawings.


please send the drdo exam paper


any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.


plz send me general of ongc


What is the purpose of bypass valve across AS valve.


principle of dead weight tester ?


How it the difference between force balance system and dispalacement balance system?


What is the differerence between hysterisis and linearity.


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