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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 16639

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

Emcure,

1213

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

1 2905

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 7556

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

3 4801

on which principle control valve works?

Lupin, Reliance,

3 8609

what is differences between singal acting and double action valve

Carlo Gavazzi, Welspun,

1 5603

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

10 7816

why is not useing in boiler skin thermocople

KNPC,

1 3577

how to explain PID?

Jindal,

2 4124

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

1487

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

1 2761

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

1199

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

Emirates,

2 21790

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

Wartsila,

7660


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Un-Answered Questions { Instrumentation }

diff between neutral ,ground,phase , earthing and shielding?

1423


What is the constant voltage unit?

159


in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

1375


Any body have know try work calculation ???

504


What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

1184






how many types of preheaters are in cement industry & what r they can any body explain?

834


what is the procedure of belt scale calibration?

1465


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

1327


Why boiler chimney area  oxyden sensor fixing? 

1600


Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

1922


What is force balance principle?

200


How r the calculation of process line mpm.

3779


Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd

1169


what is the protection system in solar turbine compressor

1279


Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

1087