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

Instrumentation Interview Questions

Questions Answers Views Company eMail

whether radar level transmitter is applicable for the open tank

TCL,

1 4693

what is the difference b/w wet leg & dry leg level method

2 7585

what is LAS in foundation fieldbus protocol?

1 6904

WHAT IS AN INTERLOCK SYSTEM ?? HOW THEY WORKs ?? WHERE IT IS USED ??? MAINLY ??

TATA, Tata Steel Limited,

2 8027

What are the processes Variables?

4 6362

Define all the process Variable and state their unit of measurement. ?

3320

Explain, and give a real-world example of MODULATING control

1 5984

Explain an adaptive / self-tuning controller’s major draw card.

2388

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?

Jindal,

4 8413

For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

1980

Describe the concept of Gain Scheduling, as currently found as an option in some controllers.

1 4112

In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.

2070

How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?

2782

whatis range of marcury filled tempereture gague

Dr Reddys,

2005

What is require for PLC Programming?

6 16049

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Un-Answered Questions { Instrumentation }

few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters

2095

Name different types of bourdon tubes.

1201

what is piezoelectric transducer?give an example in power plant n state its principle?

2662

in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.

2862

Which topics are covered in Process Control?

2215

How can a d.p. Transmitter be calibrated?

1376

why we are using drum level control valve air to close?

2150

Dear Friends, we are planning to design Power distribution and Fiber optic in the same cabinet.Like Front side Fiber optic and Rear side Power distribution.Is it any possibility of problem occurs like interference etc? Your answer is highly appreciate.

2260

State bernoulli’s application.

1199

Using your own examples solve a problem involving normal table. (experimental method and analysis)

1215

What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?

1981

What are de-saturators?

1298

How hart protocol can be connected with control valves?

1106

How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?

5969

why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

2116

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