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

Instrumentation Interview Questions

Questions Answers Views Company eMail

how to commission furnace ( water heater)

Petrofac,

1988

Full form of KKS when use DCS.

3117

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

2 5931

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 4334

What is the potential contact / output??

Vasava Engineering Private Limited,

1 3060

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

2 37893

How many interlocks at turbine? Plz explain briefly

MRPL Mangalore Refinery and Petrochemicals Limited,

1900

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 4376

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

Edac,

2 4735

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

Reliance,

1 4287

how to adjust relay in smart positioner ?

SipChem,

1 3731

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

ABB, NTPC,

2265

How to do manual mapping in radar type level transmitter?

2 13097

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

1644

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

PCMIL,

1805

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Un-Answered Questions { Instrumentation }

Explain bernoulli’s theorem. State its application.

1117

What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller

2321

What is the principle of capacitance type level transmitter?

1030

How flow can be measured with dp?

1094

What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows very argent : my mai is merajalam143545@yahoo.com

2455

What is difference between ESD and PLC please Explain me clearly.

4837

TECHNICAL/ARTITUDE

2189

Calibration procedure for Electro magnetic Flow meter

4444

hi sir yhis is zahid ali i am preparing for the jspl at oct.4.please send me the recently updated sample paper.

2133

In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1911

What is the GK Value in Flowmeter?

3652

Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;

2119

sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

2426

How to measure the dust in chimney(spm)?

4051

full process of gas turbin?

2059

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