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Instrumentation Interview Questions
Questions Answers Views Company eMail

there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.

GATE,

1 5362

there are two candidates p and q in an election.During the campaign,40% of the voters promised to vote for P ,and rest for Q.however, on the day of election 15% of the voter went back on their promise to vote for P and instead voted for Q. 25% of the voters went back on their promise to vote for Q and instead voted for P.suppose,P lost by two votes,then what was the total no. of voters.

GATE,

4 19870

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

IOCL,

3 13051

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

IOCL,

7 14424

Where & Why we are using SURGE PROTECTION ?

IOCL,

4 9852

what is sil (safety integrity level

Essar,

2735

Explain about SOURCING & SINKING concepts in PLC to field sensor wiring ?

GATE,

4 11506

I am a electronics and instrumentation fresher trying for a job in IT sector. what do need to prepare for the interview?

2 4627

In RTU Panel we are having several Analogue & Digital Inputs /Outputs. We are recently facing some problems over Analog inputs , which are not updating properly (But Digital Input are updating normally) Can any one tell me from where the problem is creating , we have checked PLC CPU card, Analog Input card & we reconfigured ,But still the issue is there. Issue : 1. Sometimes Analog values are updating & sometimes not. 2. Analog values are not updating normally , showing some wrong Values 3. Total dead (0 value) Analog values are Level & flow measurement from the field instruments. (But in field the instruments are working normally & Displaying the values normally in local display unit) This problem we are facing in our Water Plant. If any one experienced this same problem or having any ideas related to our issue PLS send your valuable Answers/Replies...

L&T,

6 8711

WHAT DO YOU MEAN BY LOOP IN C.

Wipro,

2 6560

why cant we use mV instead of mA?

ABB, Power Grid, Qatar Gas, USW, Visa Steel,

12 23638

why 4 to 20 ma? why cant some other range?

3 7895

What are SMART insuments?

5 8660

explain key exchanges in all security modes WPA,WPA2,TLS?

2046

key exchanges in wpa,wpa2,tls

1929


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

can we create an interrupt in plc through scada?

2377


Turbidity analyzer working principle ?

1782


Question on maha cement

740


Please asked me How calculate DCS controller memory.

2776


what is gas metering system? gas chromatograph? and gas compressors?

2451


what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

5038


Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?

2293


Explain about the leakage class of the control valves

1995


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 ?

1853


How we calculate orifice plat size???

1530


Define cryogenic?

1169


where proximity sensor installed on tank in loading arm application

1959


what is the difference between attemperator and desuperheater ?

5580


how to relay switch sense the fault?

2609


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

2272