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Instrumentation Interview Questions
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What is difference between magnetic flow transmitter & Electromagnetic flow transmitter?

1 3470

please explain clearly in PID controller if We increase P only what will be action of the contrlere.


1 4034

If we increase PI controller what will be action.


1 3185

yokogawa Temperature transmitter showing Error 15 which is Reverse Cal Fail (confirmation calculation result is bad) in manual they mentioned reasion That the output goes to the value set by hardware failure mode jumper. How can solve this problem ? anybody can say solution


1 4872

Why drum level range is given -500 to 0 mmwc pls give me that answer

1 5449

What is the minmum distance between the electrical panel and Instrument panel


1 1687

what is electric motorised valve working principle.

1 11596

what is difference btween rotameter and orifice plate?

3 7276

How many problems can be occurring in solenoid valve? And how it can be rectified?


1 4045

Why we use the double acting control valve in flow line?

3 5884

how to calibrate temprature switch and flow switch ?


1 5565

full process of gas turbin?


Furnace draft transmitter range is -50 to +50 mmwc. why the impulse line connected in hp side?


2 10378

what is zero trim and span trim?. at which problem we need to use this?

3 5904

Good Evening all.My question is - For a feed water line to an equipment if i need to measure the flow we will use orifice /magnetic/vortex depend on cost/spec.If i need to measure a ''Alarm''signal and ''Interlock'' from one point i think we can use orifice type in one location with 2 different tapping points - one for alarm and one for an interlock to flow valve..If in case i need to have both these signals(Alarm & interlock) from magnetic flow meter,is it possible??will 2 seperate sensors will be located inbuilt r we can program it ??..i thk we can have one transmitter with these 2 signals...need to know any technical issues are there?pls clarify

3 3316

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Un-Answered Questions { Instrumentation }

What is modbus?


Describe a time when you anticipated potential problems and developed preventive measures.


what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .


how to work static pressure sensore how to work dpt


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


For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?


In apron feeder how TPH is calculated?


In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.


what is the calibration procedure for magnetic flow meter @ onsite


I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?


can any one explain in which term we are flow flow is it volumetric r is it mass? and y


What you mean by multi stage control vavles?


How does temperature bath work? How does coil gets heated only by applying some current?


Do you have reference list?


How do bending tubing provide better measurement than using tubing fittings such as elbows?