Instrumentation Interview Questions
Questions Answers Views Company eMail

whatis diference between zero pressure and obsolute pressure

ABB,

1 5155

whats the diff b/w zero pressure and obsolute pressure

4 8475

what happens when the profibus fails while in operation (operation of a valve)?

L&T,

5 11006

what is the difference between signal cable and ontrol cable?

Essar,

14 61926

thru which signal does µP communicate with memory

3 5669

What is the difference between HMI and SCADA and MMI

4 13619

What is the difference between HMI,SCADA and MMI,not abbrevation?

HCL,

7 37198

what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?

NTPC, PSU,

1752

how checking is done in fiber optic cable? explain the working of RTU?

PSU,

5 14404

Difine flashing , Cavitaion & Noise? how to minimize these effects

L&T,

3 7855

what is skin type thermocouple? how it is installed? what is the difference b/w thermocouple & skin type thermocouple? what is gounded & non-grounded thermocoplle? what is the diff b/w these two?

KazStroy Engineering, PSU,

2 27393

How Honeywell FSC is functioning and what is its purpose? Can we bypasa it and only use DCS instead of that.

3 7583

What is diffrence between Transducer and Transmitter?

Ford,

13 23888

What is the syllabus for Instrumentation Engineers, who wish to join the Public Sector Units??

1 2906

I am pujita completed Electronics and Instrumentation Engineering.As a fresher i am going to attend the interviews.Could anybody guide the topics/questions covered mostly in interviews.

11 20521


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?

1763


what is cems analyzer explain with principle and drawing ?

1868


what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

1500


I want to buy a seal kit of a pneumatic power cylinder.But I don't know it's specification.So please help me to know its specification.

1500


pls suggest suitable MOC of diaphragm for pressure measurement of UREA grade solution service fluid.

2659






How to convert milliampares into flow??

1268


any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

1938


Explain why plc require in analog input 4-20amp & 0-10 volt?

615


How process line mpm calculation is done?

843


I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration  So is there any causes biside this or  any  permissives ?

1389


Calibration of controller (pneumatic)

1514


What is the GK Value in Flowmeter?

3045


how we are selecting instuments by differentiating certain instruments in 4 to 20 ma range and certain in 1 to 5 v dc

1637


can we create an interrupt in plc through scada?

1891


What is intrinsic safety mean.

1462