what is the use of choke on tube light fitting

37 Answers   Bhel, Dharma, HSBC, TCS,

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in case dc we mark as + ve & -ve..but in case a.c. we mark as ph&N...Y LIKE PLZ TELL ME

4 Answers   NPTC, TCS,

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how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.

5 Answers  

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What kind of earthing method can be useful for ships and boats ?

0 Answers   GE,

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why use celling fan wing is two or three ?

2 Answers  

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what does a string of resistors in a series will do?

0 Answers  

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what is tpmo switch

3 Answers  

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Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

6 Answers   L&T,

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What will be the output of an alternator ,if the field current is single phase ac supply.

1 Answers   DRDO,

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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

0 Answers   Glenmark,

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how much load 15kva dg set can bear.with full explination and how to calculate?

2 Answers  

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Whether the vacuum contactor requires Short circuit protection?If No,why?

0 Answers   Reliance,

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