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Instrumentation Interview Questions
Questions Answers Views Company eMail

should I use Hydrostatic Pressure Transmitter for measurement of DENSITY of filled tank ? If YES then please explain how.

HPCL,

2 6851

what is the difference between AUTOMATION AND INSTRUMENTATION?

7 38657

anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me

5983

what is difference between pressure,flow and level control valve.

3 9211

What is the electronic transmitter frequency.

CPCL, QAFCO,

1 3949

what pressure transmitter?

Bhel,

8 16010

i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

2053

What is the maximum operative of Drive ?

Reddy Labs,

2 6260

Why Flow measure in Square-root?

12 51930

What is rated capacity in Control valve

3 18446

Exapain Deatails of the PID controlller

4 10092

Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

2032

Watt is Wrms define rms?

2 7941

any body tell me ,contol valve has how many cheractristic? explain it.

L&T,

6 10861

what is the primary sensing element in flow or pressureand level transmitter?

Power Grid,

5 20492


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

How u will setup SPI(2007) on Citrix Server (Thin Client Mode)? Plz Justify?

1976


how do u calibrate the vacuum transmitter if it shows more reading

2004


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

1721


What is ultrasonic flowmeter?

1053


can anyone tell me about the basic concepts to consider before to start a PLC panel wiring

1884


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

2099


1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling

2387


Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

1592


my data card only does run in my mobile so how can change it that it run other mobile & computer and i can stor data in my data card

2222


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

1362


䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ

1931


What is the use of control cable?

1106


any body please send me the old question papers of ongc test.

2066


How we connect a instrument with ground, Give brief explanation with help of diagram?

2059


How many are the types of instrument cables in terms of No. of pair.

2158