Top 30 Instrumentation and control Interviews Questions & Answers

This Instrumentation related video talks about the most common and popular Instrumentation and Control Interview Questions and answers that are very helpful for instrumentation technicians and instrumentation engineers .
The discussed interview questions regarding instrumentation have covered wide range of instrumentation topics such as process instrumentation and field instrumentation, pressure transmitters , calibration of instruments , programmable logic controller, vfd (variable frequency drive), control valve, pneumatic actuator etc.
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[@that1electrician]

I have never seen these questions pop up in any of my industrial electrician/ instrumentation job interviews, except for how to measure 4-20mA and what is a TC, RTD. This is some pretty advanced stuff.
The ones Ive always been asked are:
1.Explain 0-10V and 4-20mA and pros and cons.
2. What are the color of the leads of a Thermocouple? Which one is + and --?
3. Do you pour water into acid, or acid into water?
4. How do you terminate a shielded cable. Which side of the cable do you ground?
5. What does 3-15 mean?
6. Do you know what zero and span means?
7. How do ultrasonic sensor work?
Theres a couple others that always come up. Theyre pretty basic.

[@InstrumentCalibration]

Hello
Thanks for your valuable feedback on this video

[@MR-nl8xr]

Good Comment.
Do you have the answers for those questions?

[@InstrumentCalibration]

We do@@MR-nl8xr

[@imayleakount9610]

What other questions can you think of that would probably come up. Any videos/literature that someone who has been out of the field for a while could use to brush up on instrumentation basics? Thanks

[@InstrumentCalibration]

Hi @@imayleakount9610
We have made a decent chunk of videos on HART, CONTROL VALVES, and basic instrumentation interviews. Kindly check those :)

[@SlimaneAutomation]

Thanks for the information

[@muscatmama]

Fantastic

[@sihlemlangeni1929]

Thank you very much. The Q&A is simple to understand and on point . This has helped me a lot .

[@InstrumentCalibration]

Thank you. I really appreciate your comment

[@AzharPsas93]

Excellent ❤

[@gugulothuvenkateswarlu6814]

Exallent

[@InstrumentCalibration]

Glad you liked it

[@RaviKumar-ex9ne]

Very useful video

[@InstrumentCalibration]

Glad you liked it

[@faisalmalik7408]

exilent 👍

[@InstrumentCalibration]

Awesome

[@rakeshrajak7655]

Thank you sir
Very nice

[@InstrumentCalibration]

Thanks Rajesh for watching this video

[@sulusk267]

It’s good one

[@InstrumentCalibration]

Thank you

[@mr.omprakashbarure4981]

Excellent❤

[@InstrumentCalibration]

Thank you

[@kirankumargadwal4678]

Thank you, almost all important questions are covered. Please do more videos on interview QA

[@InstrumentCalibration]

Hello Kiran
Thanks for your comment. I will post more videos on interview questions and answers in future.

[@charanmvg6433]

transmitter mounting for steam service .picture equlising valave position check once.

[@abdessamedghettas7167]

Thanks

[@InstrumentCalibration]

Appreciate the feedback

[@albarslane8599]

It's very good explication but there are many information at once sow if you dont mind i have a proposition what if you did mini vidéos ans focos on evry part at once thankyou

[@InstrumentCalibration]

Hello Alb
We have created series of video too. Please see below links.
1. czcams.com/video/4lbKLuB-cRs/video.html
2. czcams.com/video/4lbKLuB-cRs/video.html

[@RaviKumar-fs4cp]

Thank you

[@InstrumentCalibration]

you are welcome

[@sundaramnarayanan1375]

add questions on Cold Junction compensation?

[@alpeshpatel7111]

NicE

[@InstrumentCalibration]

Thank you

[@nuhbellos3794]

Does anyone have any insight into what the physical field evaluation and written evaluation would entail for an E&I Apprentice position? I passed the EEI MASS test and have these coming up. Thanks

[@harikumarhari8882]

good😍

[@InstrumentCalibration]

Thanks!!

[@asingwirebonus3479]

Thank you for the video. Help me send me a video on analog scaling in PLCs

[@InstrumentCalibration]

We will send it shortly

[@rkmohapatro]

this video is vwry helpful for interview

[@InstrumentCalibration]

Thank you

[@sadanalasaran8335]

VIDEO is super nice explain but video is high

[@KiranKumar-hk3zk]

Please make a clear video of AI AO DI DO signal connections from field to dcs

[@InstrumentCalibration]

Hello Kiran
I will make clear video on this topic soon.

[@okaforignatiaus345]

Good day, pls I need a video on CALIBRATING TRANSMITTERS USING HART COMMUNICATOR

[@InstrumentCalibration]

Hi
Please check the HART videos on our channel, we have videos on the requested topic
Let me know if you want us to provide the link in the comment section

[@MR-nl8xr]

Diagrams 5:24 and 5:37 are backwards, if you are showing them in "gravity" fashion.

[@johnpeter6451]

Can u explain about working of by pass valves

[@InstrumentCalibration]

Hi
Thanks for the comment.
Our tech team is working on this content

[@bursty1382]

9:14

[@georgemoholo192]

I need psychometric test

[@theomnyakeni4288]

Why are we using 4-20mA and not 0-20mA?

[@Reeshichohan]

Sr i am instrument technician can u tell.me which course i do for furture carrier growth.

[@InstrumentCalibration]

Hello Beats
Have you done engineering in Instrumentation and Control?

[@Reeshichohan]

@@InstrumentCalibration sr I complete.diploma.electeonics and communication and 2 years exp.in instrument and 5+years exp.in electronic

[@user-qy3cg1wl8d]

I'm interested in learning about instrumentation and control
What is the easiest way to learn instrumentation

[@InstrumentCalibration]

Hello Alwell
You can start with our videos. If you watch all our video, you will definitely get some basic knowledge about I & C.

[@Practical.instrumentation]

Search Practical Instrumentation
Channel

[@sushildurafe9037]

Why HP & LP tapping is done at 45 degree in process line for FIT
Where K type TC is mostly used
Explain transfer of signal from DCS to control valve
How to calibrate interface level transmitter.
What is actually marshalling cabinet

[@InstrumentCalibration]

HP & LP Tapping is done at 45 degree in process line to avoid any entrapped gases & to avoid any pipe dirt particles in pipe lines
Type K is commonly used in nuclear applications because of its relative radiation hardness.
DCS sends 4-20mA signal to I/P converter. I/P converter converts 4-20mA signal into 3-15 psi signal. Then 3-15 psi signal goes to control valve to control the flow.
I have made one video on Interface Level Measurement.
Please see below link.
czcams.com/video/Z9S2mgVM3FU/video.html
The marshalling cabinet acts as an interface between the system cabinet and field junction boxes. The main cables are laid from the field junction boxes to the marshalling cabinet. The prefab cables from the system cabinet IO cards are also terminated in the marshalling cabinet.

[@sushildurafe9037]

@@InstrumentCalibration Guided wave radar type interface level transmitter calibration, what will be zero and 100?
Working principle of ESDV and types?

[@sushildurafe9037]

@@InstrumentCalibration When FIT is showing zero what will be position of FCV fully open or close.

[@that1electrician]

​@sushildurafe9037 You're like, so smart bro.

[@kanchorintalamia7308]

@@InstrumentCalibration

[@heatherquick4095]

Commissioning a DPT is wrong , for some meters this procedure would destroy them straight away.

[@jackfeak2364]

I agree. I would think bypass closure would be last. If you open the HP side first with the bypass closed the transmitter would see a very large pressure differential. Example: if the transmitter was taken out of service or replaced on a 450lb steam flow system and you opened the HP side the DPT would see a 450 lb differential. Often times steam flow transmitters are calibrated 0 to 100 inches of water using orface plates so damage could be a real possibility.

[@sadanalasaran8335]

Loto explain
Loto-logout tagout