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,

2053

Full form of KKS when use DCS.

3175

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

2 6047

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 4464

What is the potential contact / output??

Vasava Engineering Private Limited,

1 3137

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

2 38187

How many interlocks at turbine? Plz explain briefly

MRPL Mangalore Refinery and Petrochemicals Limited,

1966

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 4453

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

Edac,

2 4838

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 3821

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

ABB, NTPC,

2305

How to do manual mapping in radar type level transmitter?

2 13239

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

1697

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

PCMIL,

1867

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Un-Answered Questions { Instrumentation }

Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?

2303

what is the procedure of belt scale calibration?

2445

What is three element in drum level?

1407

what is wave length were using ?

1904

Isometric drawings are generated during _________________ phase of a project

2086

when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?

1770

explain key exchanges in all security modes WPA,WPA2,TLS?

2053

what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?

2187

How can a d.p. Transmitter be calibrated?

1311

Is there any relation between Artificial Intelligence and Instrumentation?

1158

How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

1508

Coal mill Instruments Equipments for cement plant And process diagram ?

2928

How to convert Differential pressure to flow in TPH

2241

3. Differentiate between ultrasonic flowmeter and radar type flow meter.

2953

What is the use of gauge?

1147

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