What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.

0 Answers  

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plz give me the logic for how a pushbuttoon can be worked as atoggle switch i m working with allenbradely/micrologix1200/rslogix500

3 Answers  

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how to calibrate displacer type level transmitter by dry weight method please mention formula for weight calculation

1 Answers  

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any body please send me the old question papers of ongc test.

0 Answers   NTPC,

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What is the different between ESD & PLC.

1 Answers  

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what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

0 Answers  

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where Pirani gauges are uesd in case of pressure measurement?

3 Answers  

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What is re-latch the manual trigger in solenoid valve

0 Answers   Valvitalia Systems Division,

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I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

0 Answers  

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An atmospheric storage tank has a diameter of 20 m and a height of 8m.It is half-full of liquid with the remainder of the space containing air normally at atmospheric pressure. If the connection to atmosphere is accidentally closed off and 10 cubic m of liquid removed, what happens to the internal pressure of the tank? What are the possible consequences for the tank?

1 Answers  

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any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

0 Answers   IOCL,

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-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

0 Answers  

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