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 working principle of oxygen analyzers(zirconium oxide type) used in CFBC boilers?

Bajaj, Kohinoor, Wartsila,

3 19565

Why upper weighing limit of electronics balance is 90% of the total weighing capacity?

Emcure,

2254

Why humidity limit is 30 to 55 % for raw material storage?

1 4354

Why the Air Tank Accumulators required for the single acting actuators SDV's or BDV's as I see in some Schematic diagrams of ROTORK ??

L&T, Siemens,

2 11336

if we put any thermocouple on a table in a room without any connection,what temperature should it show.

3 7226

on which principle control valve works?

Lupin, Reliance,

3 11784

what is differences between singal acting and double action valve

Carlo Gavazzi, Welspun,

1 7573

why do 4 mA serves as 0% not 0 mA?

10 13128

why is not useing in boiler skin thermocople

KNPC,

1 5366

how to explain PID?

Jindal,

2 6451

How to do gas analysers calibration in AUTO and Manually by using zero and span gas?

2395

In which principle Woodward Governor 505 work in power plant? What are the input of Woodward governor 505

1 4561

what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

2169

how is a displacer type level transmitter calibrated.explain the method?

Emirates,

2 24678

please tell me what is a light up procedure of Cfbc boiler and what it's axuillaries of cfbc boiler?

Wartsila,

8733

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Un-Answered Questions { Instrumentation }

what is temperature compensation?

5530

How to Calibrate Vibration Probe (Axial, Redial) in field

1188

In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?

2045

typical loop drawing of a simple feedback control comprising of one transmitter and one control

2050

Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

1455

please any body have most important data for study for saudi aramco test of instrument QC thanks email shahnaveedullah@gmail.com

1728

what are the selections available in configuring a burnout protection of a controller? thanks

2032

What is the difference between uv and ir scanners? and what is the workig principle of both

2428

What is heating effect?

2414

what is the protection system in solar turbine compressor

2253

what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.

2388

IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

2456

What is instrumentation measurement?

1170

Which type of pressure can be measured by primary elements?

1091

Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264

2454

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