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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is the difference between active & reactive power?

2193

How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

CCIE,

2038

What is the principle of a Pressure gauge?

CCIE,

2 5842

What is zero elevation and zero suppression?

CCIE,

2165

How will you calibrate an interface level trol/normal level trol in line and in w/s?

CCIE,

1 3063

What is limitation of the ht.of the displacer of a level trol?

CCIE,

2395

What happens if the Displacer has fallen or has a hole in it?

CCIE,

1 3340

What is the cv of a control valve?

CCIE,

2 6462

What are the type of bonnets in the control valves?

CCIE,

1863

What is the use of valve positioner?

CCIE,

1 5792

When can a bypass not used on a positioner?

CCIE,

1 4184

How will you change the action of a control valve?

CCIE,

1 3325

Explain about the leakage class of the control valves

CCIE,

1993

What are the types of control valves available

CCIE,

2104

What is Vena contracta?

CCIE,

3 7868

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Un-Answered Questions { Instrumentation }

Difference between ultra sonic flow meter

1993

What is rang ability?

2338

flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty

2301

plz tell me clearly about PID.."when v have to change I value,D value,GAIN??

2176

Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

1536

Which types of quections asked in interview for FORMULATION PLANT (PHARMA)

6704

what is isloted barrier how it works and what are the main purpose.how it make safe area.

2128

Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.

3209

What are the types of valves?

1146

Explain how thw analog to digital converter works with the circuit diagram

2671

what is the reason while warning lamp is on while the engine is cranking?

2143

WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

2314

can we create an interrupt in plc through scada?

2371

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

2329

How to do gas analysers calibration in AUTO and Manually by using zero and span gas?

2343

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