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IOCL Instrumentation Interview Questions
Questions Answers Views Company eMail

HOW MANY METHODS OF TEMPERATURE MEASUREMENT ? HOW MANY MEASURING DEVICES / TRANSDUCERS ?

6 12722

can we replace a pressure transmitter of range 0 to 25 Kg/cm2 by a Pressure transmitter of range 0 to 10 Kg/cm2 ?.. Will it affect 4 to 20 mA output signal which we will feed to the PLC.

9 13351

Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?

3 12892

Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..

7 14131

Where & Why we are using SURGE PROTECTION ?

4 9672

1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

2529

in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?

3111

WHAT IS SELF CLEAN ELCTRODE IN MAGNETIC FLOWMETER?? WHAT DO YOU MEAN BY THIS TERM??

2 9300

how to set calibration range in a DP transmitter to measure level for a closed tank and for an open tank,and also please explain me how to set calibration range for a DP flow transmitter in a line ?

1 9343

in current transmitter why we use 4-20ma ???

2 5555

Yokogawa mass flow meter shows negative reading...what r the main causes for this problem?...

3 9877

What is safety barrier and how it is work

2 4801

difference between repeatability and reproductability

1 4334

what is stability

2 4754

difference between span and range

3 16852

Post New IOCL Instrumentation Interview Questions


IOCL Instrumentation Interview Questions


Un-Answered Questions

How to prepare plasma membrane from xenopus oocytes?

1825


What are pooled tables? : abap data dictionary

1068


What is chi square test?

289


Your project progressed as planned up until yesterday. Suddenly, an unexpected risk event occurred. You quickly devised a response to deal with this negative risk event using which of the following tools and techniques of Risk Monitoring and Control? A. Risk management plan updates B. Workarounds C. Corrective action D. Additional risk identification

1172


What is varchar example?

978


Are arrays static in java?

1010


What is static keyword in java?

959


Explain what are the different types of transformation available in informatica.

1046


You would choose to advertise on the google display network if you wanted to?

194


What causes the "snapshot too old" error? How can this be prevented or mitigated?

477


What is the difference between Grunt and Gulp?

443


What do you understand by $watch?

775


Explain what are the main families of threads?

1008


what are the different roles defined by cloud architecture?

5


Do character constants represent numerical values?

1290