Why even multiple power supplu r used in instrumentation system?

1 Answers   Honeywell,

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suppose in dcs range of a flow transmitter is 10t/hr what is dp for 50% in 2500mmwc

6 Answers   Chevron,

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why we are using (-24VDC) and where we r using plz tell me

7 Answers  

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why metallic housing is provided of solenoid valve.

1 Answers   HPCL,

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

5 Answers   L&T,

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Induction type 1-p wattmeter reads ….. a) true value b) apparent value c)volt ampere value

3 Answers   Engineers India Limited,

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what happen if i install my pressure transmitter below the elevation of pipe in natural gas service. Also support your answer

3 Answers   C2C,

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If we increase D what will be the controller action?

2 Answers  

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can any one pl explain me in brief that how we select the leakage classification in valve,means for liquid or gas there is any standard for selecting leakage classification or its depend upon valve size or any any other parameter.

3 Answers  

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Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com

0 Answers   ABB, Jindal,

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WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

0 Answers  

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What is zero elevation and zero suppression?

0 Answers   CCIE,

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