Answer / ganesh

1.DIFFERENCE BETWEEN UPSTREAM PRESSURE AND DOWNSTREAM
PRESSURE IS THE DP ACROSS ORIFICE.
2.PERMANENT PRESSURE ACROSS ORIFICE IS NOT FIXED.

Answer / ali

dp(differential pressure) the pressure across dp can not permanent it changes with change in up stream pressure and also pressure change to down stream and velocity also increase at down stream side of orifice plate it is called differential pressure.

wht is snap action switch?where it is used?is there any diff between snap action switch and normal pressure switch?

1 Answers   ONGC,

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What does PCU means with respect to Dead Weight Tester?

1 Answers   SGS,

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1 Answers  

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how the flow rate is measured from a pipe with the help of pressure?

1 Answers  

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why we use -ve voltage in vibration monitoring system.generally we use 4 to 20 mA as output of instrument then why we use voltage in vibration

2 Answers  

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what is difference between venturi and orifice

1 Answers  

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What you mean by multi stage control vavles?

0 Answers  

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what is the importance of CV in the control valves? how it is calculated?

0 Answers  

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why we use only 4 to 20ma other than 0 to 16 ma

5 Answers   Invensys, Systech,

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what is difference between RTD , thermo couple and thermistor in general ?? (except temperature co-efficient )

5 Answers   Bilt,

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What is hook's law

4 Answers  

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Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plants instrumentation field , which one field is give long life & which one field is best ,I confused a lot And also I'm studying AMIE, can I choose which field from Section B examination?

1 Answers  

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