how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

0 Answers   ME,

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Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?

1 Answers  

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What do u understand voltage reg. of an alternator?

0 Answers   IOCL,

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why potetial transformer primary ground?

1 Answers  

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What will happen if the generator turns in a wrong direction?

2 Answers  

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Hello sir. if u have electical engineering exam paper then plz mail me at bhumika_1187@yahoo.co.in. i m appearing exam for HPCL.

1 Answers   HPCL,

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what is specific gravity of a battery if specific gravity increase/decrease,what will happen to the voltage/current of the battery

5 Answers   NTPC,

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why overload relay is not tripped at time of starting of motor allthough staring current is too high?

5 Answers   TATA,

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what is the practical definition for voltage

3 Answers  

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why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,

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Which of the following loss varies with the load A hystresis loss B eddy current loss C copper loss D core loss

1 Answers  

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If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers   Usha Capacitors,

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