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Instrumentation Interview Questions
Questions Answers Views Company eMail

What is trim material . Why it is known as trim.

L&T, LNG,

1 6850

I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu

GNFC,

5 10944

i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me

ONGC,

3 11600

how many types of thermocouple cable are? give the name of each type.

Fabco,

1 6882

what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar

Birla,

1 6934

why we use 4-20 mA for calibration of the instruments.why we cant use 0-20 mA?

 5 11378

principle of automatic votage regulator

Bhel,

1 2231

how to test rotor &stator earth fault in turbine

Bhel,

1 12790

what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly

 2 6088

what is the difference between(Flame proof/Explosion proof)& Fire proof instruments.Both are same or different & if different in which way because the transmitter which have approved ATEX flame proof enclouser but it use PTPE O ring & PTFE Head Gasket,so its (fire safe/fire proof)????????

 4 22709

what is the standard of determining opening/closing time of Motor Operated Valve?

 1 5435

what is a mapping in plc & dcs

Arctern, ARM Cement,

1 12945

can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.

 1 2376

What is a PID controller and how can it to applied to our everyday life?

 4 25564

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR as accurate value?

 7 10847

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Un-Answered Questions { Instrumentation }

principle of dead weight tester ?

2166

any one can send me instrumentation previous interview papers? I prepare for MNC Company Interviews? my mail id- Rakesh.Golla@dodsaldxb.ae , and another mail rakesh.gvk@gmail.com

2047

give me all the details about the interview and which type of question being asked

2301

please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...

2077

send me last 5 years questions asked in rrb chennai, for section engineer

2184

please tell no. & add. of consultancy who recruit me in power plant as instrumen engg. present i m working in power plant as ass.t instrument engg. thanku mahesh 09226562826

2179

Questions on flow meters,few questions on HART protocol,

2092

hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com

2080

sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

2547

where cascade loop use ?

1789

hi i am eswar i want to know the instrumentation interview questations for eil(engineers india ltd) i have applied for engineer post in eil please help in this.my mail id eswar310@gmail.com

2647

hye SAM acn u send your e mail id, so that i can solve my query through e mail?

2349

sir, give me placement papers and interview quistion of birla group company of copper.

2933

plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

2408

use of split range ? where it is used ? in which control loop it is used ?

2045

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