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Instrumentation Interview Questions
Questions Answers Views Company eMail

how to commission furnace ( water heater)

Petrofac,

2047

Full form of KKS when use DCS.

3162

how to measure the output of RTD given the general formula of  rtd.  

2 6034

How to calculate the flow rate in Vortex flow meter?What is K factor?Can you give me an example calculation to understand the same as better?

npcc, Zadco,

1 4453

What is the potential contact / output??

Vasava Engineering Private Limited,

1 3129

How to convert 0-2500mmH2o into kg/hr? Or how to convert mmH2O into kg/hr,t/hr etc

2 38170

How many interlocks at turbine? Plz explain briefly

MRPL Mangalore Refinery and Petrochemicals Limited,

1955

In dcs contol valve parameters showing like this Gain=1 or 2 , ti=7 sec, td=20sec. But temp,pressure,level control valves we are using in which type parameter side using ti,td clearly tell me

1 4449

In field side transmitter voltage droping here no loose connection then what will happen?

Edac,

2 4830

how eddy current loss in probe and induced gap voltage accros probe trip and shaft

Reliance,

1 4348

how to adjust relay in smart positioner ?

SipChem,

1 3812

HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.

ABB, NTPC,

2302

How to do manual mapping in radar type level transmitter?

2 13229

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

1691

What is frequency factor in massflow meter? When using frequency output?

PCMIL,

1863


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.

2302


How is PH sensor works ?

1968


what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

5400


I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.

1564


how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

2488


What are the type of bonnets in the control valves?

1870


SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.

2358


HOW TO CHOOSE FREAQUENCY IN FMCW TYPE RADAR INSTRUMENTS. DESIGN BASIS OR DESIGN CALCULATONS ?

2181


what is thermo coupler and how it works

6087


which type of signal used in instrument?

9852


use of split range ? where it is used ? in which control loop it is used ?

1968


sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers

2329


What is the procedure of calibration of Load cell?

1924


What are advantages and disadvantage of the ac supply load cell?

1056


What are different type of instrument cable

2273