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Instrumentation Interview Questions
Questions Answers Views Company eMail

Why Ma signal is using for control system?

Petrofac,

1 5392

what is cascade loop and how it work and why it used instead of PID single loop? In cascade, Which loop is faster and slower? Please explain with loop drawing and example...

Honeywell,

2 14271

how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)

Honeywell,

2252

define feed forward control loop with example and drawing?

Honeywell,

2738

Hi i m B.E. In elect. & comm. I m workin in bio mass plant from 6 mnths as inst. Engg. but now i m in dept. Of operation as shift engg...which is best operation or inst. 4 me? M confusd..plz help and reply me..

 2 3276

Why we use negetive (-)voltage in vibration system

 4 10473

What are securities of turbine?

 1 4089

What is Hysteresis mean in Instrument?

 11 54157

What is linearity of RTD over 0 to 200 degC?

Honeywell,

1 5594

How to Calibrate Transducers? Can you give me a step by ste procedure?

 1 4436

how can you set a zero and span of transmitter?

Rockwell,

1 4865

what do you mean by smart instruments?explain with example

 4 10961

IS THEIR ANY AGEING EFFECT ON FLOW NOZZLE, ORIFICE, MANIFOLD, OR TRANSMITTER ?

 1 3126

what is the difference between single and double compression cable gland

Petrofac,

3 18774

WHAT PRINCIPLE OF GAS ANALYSER( CO,CO2,N2)

Jubilant Organosys,

2 15091

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Un-Answered Questions { Instrumentation }

Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.

1489

why I need valve guard and whats different between guard and positioner ??

875

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 .

2384

how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

1394

how can use ram

1478




what is sil (safety integrity level

2195

Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

1346

In turbine what does term CDP, NH, HSSOC means.

1333

State some of balance principle’ advantages?

646

how pressurize drum calibrated ?

1573

i want to find out iffco get test paper

12205

Draw a group of instruments interlocked to a Pump & Motor?

643

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

1681

DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

1458

Describe how to use megger to measure the earth resistance and insulation resistance

1701

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