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Instrumentation Interview Questions
Questions Answers Views Company eMail

What is the difference between HMI and SCADA?

2 5537

What are the disadvantages of Human-Machine Interface (HMI)? atleast 3.

1 16895

How to zero trim the level transmitter by using foundation fieldbus communicator.


2 9714

why we use only 4 to 20ma other than 0 to 16 ma

Invensys, Systech,

5 6546

I am new in work for 1 of our project we have some instrument in BOM including Pressure, Temp. and so on, I also noticed some objects like pressure switch process HOOK UP; which I don't know what does "HOOK UP" mean here.

3 3535

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

Hotel Management,


what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 5163

when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

1 1402

How it the difference between force balance system and dispalacement balance system?


What is the difference between antisurge

1 2938

In vortex flow meter how can measure the frequency of vortex generated by vortex flow meter


4 6989

Hi buddies! i am facing a problem and if someone could help me it will be an immense pleasure to me. we have compect logix PLC 1769 2L AO module to Heat @ 52 to 56 Deg C .So if anyone can do please help me out with this problem.I'll be highly grateful.


1 2170

During the design and engineering of a process plant, a good designer should plan for ____________, ___________ and ____________ aspects of the plant

1 2430

Isometric drawings are generated during _________________ phase of a project


Isometric drawings are generated during _________________ phase of a project


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Un-Answered Questions { Instrumentation }

Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.


why orfice is not used for main steam flow calculation


what is piezoelectric transducer?give an example in power plant n state its principle?


what are the values of fuel flow rate in various places in boiler.


Coal mill Instruments Equipments for cement plant And process diagram ?


the output of the common trasmitter protocol in qatar gas are the following


How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,


please any body have most important data for study for saudi aramco test of instrument QC thanks email


what is the difference between active & reactive power?


What is the differerence between hysterisis and linearity.


Why trim span ? How?


Explain the difference between mmwc and mmwg?


can we copy the software from a transmitter using hht(hart 275) ?


What is the use of single seated valve?


How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?