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Instrumentation Interview Questions
Questions Answers Views Company eMail

what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

ABB,

1 6597

Which is your favourite subject & explain any one topic of it.

L&T,

9674

Which topics are covered in Process Control?

Honeywell, L&T,

2215

Explain PID controller tuning & any one method used for it.

L&T, Oil India,

1 7898

Tell about your IFFCO plant visit.

L&T,

2140

Explain Three way boiler.

L&T,

2 7385

Draw bode plot of any transfer function. Why is plotting bode necessary?

L&T, STS,

2596

Explain any simple temperature control system.

HGJ, L&T,

3 8953

i want to calibrate a transmitter in the range of -100 to 300 mmwc. How it is possible to measure -100 to 300?.

Hindalco,

2 5933

what is the difference between mmhg & mmwc?. i want to calibrate a transmitter in the range of -100 to 300 mmwc. Which is the reference for calibrate the Tx,if mmwc not available?. Is it mmhg or mmho2?.

UPL,

3 49475

What are the two program execution modes of PLC?

 4 8922

What are Sinking and Sourcing IO Cards

 2 7574

why using negative supply for bentley nevada vibration system ?

 2205

in transmiters(rose mount) how to check output 4-20ma ? and input 24v? i need exact explanation?

Adhunik,

2 7959

what is diff b/w neutron and ground?

 3 7123

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS

3943

what is IEC code in cables & how to selecting cables?

1896

why is an oxygen sensor used in a boiler stack

7439

What are the application of bernoulli’s theorem?

1206

what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?

2529

Exothermic reaction./ endothermic reaction

2102

Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

1678

Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.

2097

detail of mass flow meter pricipal

2361

i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

2146

How to Calibrate Level Switch in field

1397

How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

1761

Explain the working of an electronic level troll.

1151

Can combine control system for Emergency control system (ESD)and Fire & Gas System ( F & G) is possble to built and offer to client? Can such system is as per Norms in India?

2044

Identification of ss fittings, pilot valves, relief valve.

1883

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