Instrumentation Interview Questions
Questions Answers Views Company eMail

When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

Exxon Mobil,

5 10428

Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.

American Steel,

1798

Someone please do mail me some instrumentation questions for Hindustan Petroleum test to avinalexander@gmail.com .Really would be gateful if someone could help me

HPCL, Immersion, IOCL,

3 8160

what is diffrence between analog card and digital card in plc.how analog card work,Please explain in detail.Please send it on abhi_vyas@sify.com

6 26910

please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...

HPCL,

1507

can u please give the exact ckt explaination of AC Drive related to industries.

6 9331

1)What is the suitable MOC for flow meters working at temperature between 200 - 250 cen. 2)In which application the mass flow meters are not advisable 3)Is it advisable to use radiation type or radar type instrument for non contact application

1 7167

Good evening all I need a small favour regarding reliance paper i wanna probable sample papers(e&i) of reliance. if any of u have any idea about dis then plz mail me back.i belongs to electronics and instrumentation engg.so i need e&i papers. thanking u....

1642

what is the meaning of Domain server?

2 4570

what is the difference between hub and switch?

6 9046

why OPC server is used in DCS?

2 12413

how to tune the closed pid loop?

3 9521

HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.

Reliance,

1771

1.Give example of analog and digital signal 2. What is yhe advantage of 8086 than 8085

Bhel, College School Exams Tests, Profitec,

5 10534

Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

1498


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Un-Answered Questions { Instrumentation }

A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

862


What is the use of gauge?

679


What is eddy current? Describe the operating principle of proximity probe.

1752


How works weighfeeders in cement industry? what is the working principle?

1514


we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.

1277






How to work togather like sov,limit switch,proxy switch and booster in xv

3732


I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

1753


how to calibrate load cell

2308


What is cut off relay? And why use in PLC and DCS?

936


Question on maha cement

291


what is cems analyzer explain with principle and drawing ?

1864


How to calibrate capillary type level transmitter

1189


What is 3 element control system

1005


the 3 most common transmitter protocol being in refinery or qatar gas and aramco.

2477


how to calculate range of level transmitter?

1765