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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is concept of field,control room area in transmitters?

1 6807

why we use -ve voltages in vibration prob?

1 7950

how do calibrate the valves.. with clear manual

Essar,

2085

how can check the loopchecking for valves?

3 11602

SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.

2358

in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 8189

how to use K thermocouple instead E- type without compesation cable

1 3538

in split range control valve,two valve should be in two different line and that should have some distance,and we have only one positioner feed back link.so how we connect one feed back in two control valves?if you have picture please forward me.my email id kb.syamkumar@gmail.com

2 7823

How to calibrate Field bus transmitter? procedure ?

Parco,

2340

difference between transducer and converter in instrumentation

4 17745

difference between vaccum and draft

2035

why the steam drum and deaerator level transmitter range is in negative MMWC to zero

Emerson, Jindal, JKPM,

3 28659

why we are using 4-20ma why cant we use 4-40ma

3 10265

in the boiler in the main steam line and its bypass line and the startup vent vales are only motorised valves why cant we use other types of valves such as pneumatic.

3 10135

without a positionar can a control valve operate? give the difference of operating with positionar and without positionar?

IOCL,

5 12000

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Un-Answered Questions { Instrumentation }

What is the difference between mmwc and mmwg?

1370

what is IEC code in cables & how to selecting cables?

1815

How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?

5907

How d.p. Transmitter can be applied to open tank?

1128

Programmable Logic control.

1954

which type of filter gives the constant phase characteristics?

1924

How to Calibrate Vortex Flow transmitter in field

1269

what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1968

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.

2190

Draw a great bridge circuit.

2014

what diffrence b/w plc s7200,300,400

2068

Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1913

why we are using magnet for calibration of gas detector?

2247

god evening sir i am studying m.sc(tech)electronics &instrumention.am i elegible to all industies

1800

Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?

2462

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