if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?

1 Answers   MPL,

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please send the drdo exam paper

0 Answers   DRDO,

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Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

0 Answers  

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i have calibrate rosemount make level transmitter , wht can i do ? my tank capacity is 30,000 liter

9 Answers   Equate,

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in the pipe line if the control valve fails to respond to controller action,by what means we can stop the flow in the pipe line ?

9 Answers  

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where we are used split range control

1 Answers   Borouge,

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how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

0 Answers  

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HOW DPT WORKS?

6 Answers   Essar,

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What is defferent betwen ESP &PCP PUMP .HOW IT IS WORK?

0 Answers   Jindal,

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Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.

1 Answers  

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what are the problem's will accure in dcs or plc hadware and what are the solution for it?

2 Answers  

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Why we use DPT? can we use PT instead of DPT?

2 Answers  

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