Why the Proximitor supply should be Negative voltage? Why should not we give Positive voltage to the Transducer?

6 Answers   Moser Baer,

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what is difference b/w Earth and ground

2 Answers   PPL,

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sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

0 Answers  

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what is control valve input and out put

10 Answers   Nirma,

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what is the Instrumentation?

9 Answers   Gulf,

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what is the meaning of potential free contact. difference between dry and wet contact?

6 Answers   GAIL,

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What is the difference between dry contact and wet contact?

2 Answers  

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Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

0 Answers  

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What happens if the Displacer has fallen or has a hole in it?

1 Answers   CCIE,

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why k factor is important to know in flow transmitter. if we don,t know k factor what will be issue we can face .

1 Answers   Flour Tech Engineers (P) Ltd,

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what is maxdna ?. explain about the software details.

0 Answers  

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Any can guide for QA/QC Inspector in oil & gas region, the procedures, formats standards, design criteria, i search in all enginees but i can't found wat i need?????????

4 Answers   Aramco, Asian Paints,

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