Instrumentation Interview Questions
Questions Answers Views Company eMail

What is the difference between HMI and SCADA?

2 6477

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

1 18677

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

Emerson,

2 11503

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

Invensys, Systech,

5 7949

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 4674

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

Hotel Management,

2478

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

2 6071

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 2093

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

1589

What is the difference between antisurge

1 3804

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

Cadila,

4 8396

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.

Cadila,

1 2904

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

1 3068

Isometric drawings are generated during _________________ phase of a project

1611

Isometric drawings are generated during _________________ phase of a project

1607


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

what is output of FOUNDATION FIELD BUS transmitter

1689


Hook up resistance decade box to temp.transmitter.

1716


Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

1643


control panel design guidelines

2848


Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

1487






what is sil (safety integrity level

2190


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

1617


How to Calibrate Flow Switch in field

754


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.

1914


which type of signal used in instrument?

8568


what is commisioning procedure,2)what is is the main work in commisioning in the field tx to dcs, plz send me detail

1849


What denotes the 5/8mm in the 3300XL 5/8mm proximitor probe?

977


what is KV and XV valve

1288


I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

1754


I am teja. I am studying Msc(tech) Electronics and Instrumentation (3years course) in Andhra university. But my course is not recognised by UGC and AICTE. Please tell me the job opportunities after this course. And i fineshed PLC course in IGIAT ,Vizag.Also complted my short term coure in SCADA, Seimans WinCC in ATI,Hyd.After Msc can i join Mtech for good job? or phd. How i can get good job in INdustrial Automation Side. Please give replay.Because this is my life matter.

1634