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

Instrumentation Interview Questions

Questions Answers Views Company eMail

What is the Differance between Graphics And SCADA Graphics? SCADA Graphics have less access?

Honeywell, Thermax,

3 9270

what is the difference between auto tuning and manual tuning of controllers(eg:PID,PI,PD CONTROLLERS )

GATE,

2 12273

Why hunting will occour in control valve?

6 47123

what is meant by Valve reversibility?

2 5475

what is meant by turn down ratio?

Avant Garde,

3 11697

what is IPS (instrument protective system)?

2 14562

how to calibrate control valves & power cylinders & ultra sonic level transmitters

ABB,

2128

how to know power plant process with corresbonding laws&thoeries

Bhel,

1 5780

for indiacation of turbine(china) bearing temperature what type of sensor will be used(i.e. rtd or thermocouple or themister ) ? why it is ? i need clear explanation ?

2 6228

I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .

1966

Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com

ABB, Jindal,

2285

define SIMULATION a and what is the need of it

Siemens,

3 9086

define COMPENSATION??

Bosch,

4 8521

what is radar type level transmitters and its basic principle and how to calibrate it

ABB, Inovonz,

4 20732

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?

1988

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Un-Answered Questions { Instrumentation }

What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

2216

What is stripper & spilitter ? Diffrence in this.?

2471

what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...

2009

Please can anybody help for control valve sizing step by step procedure?

2125

what is the electrical operation procedure for switching on 27.6MVA electric furnace.

2030

sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com

2510

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

2854

can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

2032

Make Heater Process Logic.

2103

How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

2038

What are primary elements of measuring pressure?

1281

Explain how thw analog to digital converter works with the circuit diagram

2671

How it the difference between force balance system and dispalacement balance system?

2096

What is the purpose of the analyzer in petrochemical plant?

3872

why is not useing in boiler skin thermocople

5278

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