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Instrumentation Interview Questions
Questions Answers Views Company eMail

how to commission furnace ( water heater)

Petrofac,

2103

Full form of KKS when use DCS.

3229

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

2 6148

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 4552

What is the potential contact / output??

Vasava Engineering Private Limited,

1 3210

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

2 38439

How many interlocks at turbine? Plz explain briefly

MRPL Mangalore Refinery and Petrochemicals Limited,

2008

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 4543

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

Edac,

2 4940

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

Reliance,

1 4417

how to adjust relay in smart positioner ?

SipChem,

1 3887

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

ABB, NTPC,

2359

How to do manual mapping in radar type level transmitter?

2 13366

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

1735

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

PCMIL,

1920


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

What materials are used in thermo wells?

1238


how to check earthing,what is minum ohms for proper earthing

2000


How to calibrate Toxic gas detector?

1770


why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

2934


how to design orifice plate?what is the equation?

2107


What is the principle of capacitance type level transmitter?

1134


why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature

1869


how we are selecting instuments by differentiating certain instruments in 4 to 20 ma range and certain in 1 to 5 v dc

2128


Give Detail information about plc,dcs,and scada system?

1784


Explain the difference between mmwc and mmwg?

5736


What is intrinsic safety mean.

1961


What are the interlocks we have to check during the start up of LP/HP compressor?

2044


I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

1839


If we increase only P what will be controller action ?

2516


what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?

2114