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

Instrumentation Interview Questions

Questions Answers Views Company eMail

ORP sensor working principle?

Tata Steel Limited,

2017

what is the principal of operatio of dc motor

1 2322

How does your previous experience relate to the job you are applying for ?

2023

I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

OPaL,

3 4316

how to turbine speed measurement?

Jindal Steel and Power,

1587

I have a problem with a valve (air to close). When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%. I tried to tune positioner then removed it, the problem still exist. Any idea

3 3790

in yokogawa prosef rd safety PLC how to data send frome local SCS to other SCS and other FCS

2 3285

dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

CPL,

1897

In apron feeder how TPH is calculated?

Lafarge,

1740

Flame scanner

1 2438

why fuse block is not used for AI signal?

1899

how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?

Texas,

1679

how can i calibrate a smart temperature transmitter used by druck 720 process calibrator?

Texas,

1599

what is the calibration procedure for magnetic flow meter @ onsite

1660

Pressure tx shows 1 mbar but we need 1000 mbar at this process condition .. how can we sort it out .

1708

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Un-Answered Questions { Instrumentation }

i am preparing for BARC ,so plz mail me how to prepare for BARC. ALSO IF POSIBLE SOME RELATED QUESTIONS. MY MAIL ID IS khushi_4uall2003@yahoo.co.in

3016

what is the difference between scaler and vector drive

2190

What inherent design and operating principles are included in a modern control system to use predictive maintenance practices to increase overall system reliability?

2102

A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer

2652

Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..

1840

How to calibration a control valve?

1174

What is the minimum rating availalbe for weld neck orifice in market?

1984

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

2001

Isometric drawings are generated during _________________ phase of a project

2086

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

1768

What is intrinsic safety mean.

1917

if in a level tx height is given, how u calculate the ranges of the tx?

7735

KAlman filter code for two dimension?

2077

Operational amplifiers

1965

what is the importance of CV in the control valves? how it is calculated?

2448

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