Answer Posted / manoj

Need rrb chennai (je electrical) question paper for last
5 year and i need rrb (je electrical) syllabus.Please send to
My email id:manovenkadesh@gmail.Com

how  do you choose the cable size as per amps rating & the voltage drop for the same.

1847

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Define maximum demand?

1118

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What magnetic circuit is formed in berry-type constructions and why?

1127

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What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

1165

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what is meant by 2 within a star in a voltmeter dial?

2148

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1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

2158

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Differentiate between kirchhoff’s first law and kirchhoff’s second law?

1116

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what is dry and wet frequency withstand voltage? why & where it is used??

2496

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1980

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If any cable burnt how can we identify it burnt by high current of high voltage? 

2488

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How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

1694

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Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

8156

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What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

2335

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why high speed tripping relay will be used in tripping circuit why not normal relay

1422

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What is clock position of Transformer?what are the clock positions are there?and what is different of them?

3204

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