what is relation between electronics&instrumentation

4 Answers   Hindustan Zinc,

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why we are using drum level control valve air to close?

0 Answers  

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send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com

0 Answers   HPCL,

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Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

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what is droop in governer ,type of droop ,how it work

0 Answers   TATA,

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we re giviang 24v supply to transmitter and we getting output from tx?now my question is wht we call this complete proces?

2 Answers  

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what is Potential free contact? where it is used?

3 Answers   Engineers India Limited,

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difference between accuracy and precision

6 Answers   Honeywell, ONGC,

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why we use negative 24vdc to a proximeter

4 Answers   KNPC,

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why the supply frequency used in America is 60Hz while that used in India is 50Hz?,

2 Answers   Bosch, Genco,

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what is the difference between Ethernet unmanaged and managed Switch?

2 Answers  

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In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

1 Answers   Process Control Technologies,

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