Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is concept of field,control room area in transmitters?

1 6899

why we use -ve voltages in vibration prob?

1 8053

how do calibrate the valves.. with clear manual

Essar,

2147

how can check the loopchecking for valves?

3 11743

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.

2432

in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 8326

how to use K thermocouple instead E- type without compesation cable

1 3636

in split range control valve,two valve should be in two different line and that should have some distance,and we have only one positioner feed back link.so how we connect one feed back in two control valves?if you have picture please forward me.my email id kb.syamkumar@gmail.com

2 7926

How to calibrate Field bus transmitter? procedure ?

Parco,

2392

difference between transducer and converter in instrumentation

4 17971

difference between vaccum and draft

2095

why the steam drum and deaerator level transmitter range is in negative MMWC to zero

Emerson, Jindal, JKPM,

3 28850

why we are using 4-20ma why cant we use 4-40ma

3 10399

in the boiler in the main steam line and its bypass line and the startup vent vales are only motorised valves why cant we use other types of valves such as pneumatic.

3 10279

without a positionar can a control valve operate? give the difference of operating with positionar and without positionar?

IOCL,

5 12187

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Un-Answered Questions { Instrumentation }

How does your previous experience relate to the job you are applying for ?

2087

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

2959

Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com

2306

How hart protocol can be connected with control valves?

1106

how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

2520

hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???

2042

In Safe Guarding test what means by "Failed to Danger" ?

2217

diff between neutral ,ground,phase , earthing and shielding?

2333

how to calibrate load cell

2891

Q- What are the application in which PNP transistor is preferred over NPN ?

3395

Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

1826

Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .

2560

give me the formula for analog to digital converter and also d to a converter

2889

What are primary elements of measuring pressure?

1365

what is effect of specific gravity in differential level transmitter , explain formula related with this .

1696

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