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Instrumentation Interview Questions
Questions Answers Views Company eMail

What is heating effect?

Process Control Technologies,

2353

Why is the length of cable layyed from RTD to temp. Transmitter should be minimum? Why does heating effect takes place in their?

Process Control Technologies,

1 6290

Why do we use triad cable for RTD to Temp.transmitter connection? Why we don't use 3 core cable?

Process Control Technologies,

1 15018

What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

Process Control Technologies,

2497

Why do we have earthing cable in branch cable and shield in the same cable?

Process Control Technologies,

2603

Why 1-5 vdc a standard?

Process Control Technologies,

1 7842

Hello Friends do you know this answer of this Question? Which color you would use when there is Somthing not correct or need to change In P&ID? i mean color that use for highlight that need to update in P&ID. Yellow Highlighter ? Red color ? Blue Color ? Appreciate for your answer. Thanks Blue Color

2 6003

what is all types of analyzer in water production plant?

Marafiq,

1 3247

flow transmitter formula?

BEMCO, Siemens, Yokogawa,

2811

Flow tax range 0 to 100 mmh2o ,flow rate 40 tons /hr, I want change flow rate example 42 tons/hr so tx range ?

2 4524

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

2233

why we use the 4-20 mamp signal used for transmitter.

Tecnimont,

5 10752

Boiler flame scanner working principle?

Bhel,

1 7184

Why boiler chimney area  oxyden sensor fixing? 

NTPC,

2489

How to calculate flow of air bubbler type level transmiter  According hight and density 

Qatar Petroleums, RKS,

2 5776


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

What is hp & mp seperator .& what is its working principle ?

2631


Calibration procedure for electro magnetic flow meter

1986


NSV type probe stands for

2388


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

1320


a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

2281


What are the materials available to prepare individually for competetive exams in Instrumentation field? Plz reply...

2090


what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other

2191


If we increase only P what will be controller action ?

2469


where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com

3544


what is 24vdc live and dry supply

2271


What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

2131


Explain PID, ON/OFF, Controls

2037


what is the calibration procedure for magnetic flow meter @ onsite

1655


Somebody tell me in what way i need to prepare for csio pgrpe(adv instrum eng)interview?what all the quest can i expect?

2587


KAlman filter code for two dimension?

2072