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Instrumentation Interview Questions
Questions Answers Views Company eMail

Identification of control valve parts.

CCIE, Oil and Gas Jobs,

1327

Hook up resistance decade box to temp.transmitter.

CCIE,

1562

what do you know about Foundation Fieldbus?

CCIE,

1 1723

why orfice is not used for main steam flow calculation

OEG,

1443

why vortex flow meters and electro magnet flow meters are used in water treatment plants

Elite Construction,

1 3898

how will do square root transmitter calibration

Roche,

2 7486

the square root type transmitter r used to which applications

Roche,

4 5445

What is difference b/w absolute & gauge pressure? EXPLAIN

IFFCO,

2 3871

What is the load line in control valve?

IFFCO,

1 4544

What is purpose of shield wire?

IFFCO,

1 2630

IF TX SHOWS SLOW RESPONSE, WHILE A CLOSE LOOP AND WHEN WE PUT THE CONTROLLER ON MANUAL THE PROBLEM RECTIFIED, SO WE CAN SAY THE PROBLEM IS IN

IFFCO,

1 2737

why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?

Visa Steel,

1609

why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

Visa Steel,

2186

our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

1520

what is fire and gas system?

Andhra Petrochemicals Limited,

2 12249


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Explain the use of hair spring in the pressure gauge.

474


We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.

1584


Somebody tell me in what way i need to prepare for csio pgrpe(adv instrum eng)interview?what all the quest can i expect?

1881


Questions on flow meters,few questions on HART protocol,

1380


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

1743






What is Span Error

41


what is the usage of QDV & VOLUME BOOSTER

1600


What is the use of control cable?

512


Q- What are the application in which PNP transistor is preferred over NPN ?

2672


Why rdt and thermocouple both give different output .and one things more, how to generate  ohm or mili volt  plz mail me merajalam143545@yahoo.com

2107


Where is wet leg is used?

471


Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?

1990


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

1412


how u choose thermowell lenght n pnumatic C/v size?

1492


I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

1316