Answer / divyesh

if pressure pump is hydrolic then oil or water is used and
if pressure pump is penumetic teen only air.

Answer / naeemsuleman

hydraulic oil in dead weight tester.

Answer / abhishek vyas

As DP having a very low pressure range so niether dead
weight nor water is used you can simply use air it will
provide you correct calibration.

Answer / rohan

dead weight tester

What is an antisurge control system, how it works?

3 Answers  

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where Pirani gauges are uesd in case of pressure measurement?

3 Answers  

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Whether the DP transmitter can be utilised in the medium of Vaccum for the measurement of Level?

10 Answers  

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what is sinking and sourcing....

2 Answers  

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Tr. Wiring for calibration.

0 Answers   CCIE,

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what is axial shift n what is differential expansion in turbine? how many sensor probes r mounted for this n how it works?

2 Answers   Apple,

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give eg of how I/P is used in control loops

0 Answers   CEPC,

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one rtd sensor which is connected at middle of distillation column where actual temp. is 100deg but when we tight this sensor at thermowell end it goes down to 90 deg & when remove from the thermowell(but sensor end dipped in well) showing actual reading, what is reason?

3 Answers  

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Control valve Flow characteristic. How the equal percentege curve form?

5 Answers  

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What is first echo & echo window in radar type level transmitter?

0 Answers  

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Please why do we use 4-20ma in instrumentation engineering

1 Answers  

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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.

1 Answers   GATE,

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