WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

23 Answers   Exxon Mobil, Honeywell,

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in differential pressure transmitter,min&max pressure range for hp&lp

0 Answers  

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why the output sugnal is 4-20 ma and not 4-25 ma?

5 Answers  

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Why the Air Tank Accumulators required for the single acting actuators SDV's or BDV's as I see in some Schematic diagrams of ROTORK ??

2 Answers   L&T, Siemens,

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how to design orifice plate?what is the equation?

0 Answers   REL,

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The DCS stand for________________________. it is composed of the following major components: a:______________ b:______________ c:______________ d:______________

2 Answers  

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what is difference between total flow and flow rate in general ?? explain it with daily life example.

3 Answers   GNFC,

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can i calibrate DP transmitter online (while Tx in Service) if yes ,how?

1 Answers   CEPC,

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A motor is taking 15 Amps at no load and 60 Amps at full load. and a valve has to open 10% at full load and 80% at no load. How to draw ladder logic.(PLC).

2 Answers  

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What is the difference between HMI and SCADA and MMI

4 Answers  

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pls send me the 10 years technical question papers of NTPC AND BHEL

15 Answers   Bhel, NTPC, ONGC, UCE,

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Why Current(Ampere) is chosen as Fundamental Quanties not Charge(coulomb) ?

3 Answers  

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