i want all question & answers of the written exam

1 Answers   Essar, L&T, MES, RRB,

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my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 Answers  

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What is the exact load current needed for a place which has 100nos of bulb of each 100w?

2 Answers  

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why in some cases the receiving end voltage is higher than the sending end voltage in transmission line (called 'Ferranti effect') ????? whts the reason behind tht???

3 Answers  

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what is skin effect and why is it absent in DC systems

4 Answers  

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what are the causes for strip heater failure ?

1 Answers  

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why t/f are rated in kva. is it conserned with p.f.

3 Answers  

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Why in DC drive u r using in Klin operation in Cement Plant?

7 Answers  

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For testing 33kv cable hipot testing. How much kv we have to Apply .Give in details.

24 Answers  

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How to design power source say 5KW i/p :415v 3 ph, o/p 5KW constant, variable currnt and variable volatge 10-230v,

2 Answers  

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How to calculate cable size by using load.?? Any formula...

0 Answers  

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Atwhat condition reverse power relay will act?

0 Answers   Equate,

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