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Instrumentation Interview Questions
Questions Answers Views Company eMail

Can a Differential Pressure Transmitter be used as a normal pressure transmitter??

3 7131

in any transimitter (flow/level) there are three terminals for supply& test (+,-,+)in two wire,24VDC given to Tx.,but how 4-20 ma signal travels thru same wire (as it is for 24VDC input supply)?

Jindal, UltraTech,

1 5061

Please tell me details about Sox,Nox,SWAS analyser????

Essar,

3728

for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}

L&T,

1 8848

How will you calibrate PID controller? explain with example.

Jacobs, Sirte Oil Company,

2434

How is PH sensor works ?

1968

what is the approximate cost of U tube manometer having range 1000mmwc to 1000mmwc?

1 3971

Is wet leg type system nessesary to measure water level of steam DRUM? How the transmitter is calibrated to measure this level?

2070

how to solve temperature error in compressor?

1 4170

please suggest me, how can i change the display setting in term of unit in place of % of Honeywell pressure transmitter ST3000S100?

2 4906

In separator VFD frequently trip with OVER VOLTAGE Fault What is the reason?

4 8151

What is the difference between rich gas and lean gas?

3 13713

Condensation within a sight glass? Would you expect there to be more problems when using a sight glass if there is condensation on the inside or the outside of the glass, and why?

1 3795

what is the differnce between PLC & DCS

TVS,

7 10628

ALL INSTRUMENTS WORKING PRINCIPLE.

Blanco, India Cements, TVS,

3 13510


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

1318


Explain the mechanism behind the turbine meter.

1117


How to Calibrate Level Switch in field

1336


Explain Gas Turbine startup and shutdown sequences

4321


Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?

2559


-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

2454


what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

5399


what is the protection system in solar turbine compressor

2199


What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch

2210


What is the procedure of calibration of Load cell?

1924


what is sliding spool valves?

2235


What is the constant voltage unit?

1078


How to calibrate H2s Dectector

1618


How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

1709


A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

1354