what is the differnce between ac and dc?

5 Answers  

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how to wiring it with contactor and timer together

0 Answers  

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tan delta test of current transformer.

3 Answers   NTPC,

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define transient state &steady state

1 Answers  

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Why electric traction is used ??

3 Answers   IOCL,

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what is the advantage of NiCd battery over Lead acid battery?

2 Answers   BARC,

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what is the contact resistance of Air circuit breaker??

1 Answers  

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Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control

0 Answers  

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If i have 200 test cases and we have to execute but we don't have time to execute all testcases.within 1 hour we have to execute that testcases and prepare the test report.so how i have to resolve this problem? is there is any technique in the testing.

3 Answers   Stag Computers,

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why air handling unit interloking in case of fire

3 Answers  

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please explain how to do 'pole drop test' on generator?

0 Answers  

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What is thresh hold value of current?

0 Answers  

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