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BSNL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?

4 7230

how the calculation is done if the DG set require for the -- -48 to -51v 4000 ah battery set .

1 2759

RESISTONS R1 AND R2 in parallel = Total R.? 1-R=R1+R2 2-R=1/R1 + 1/R2 3-1/R + R1+R2 R=R1R2/R1+R2 select one

2 2058

The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

823

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

636

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What is rollup component?

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Is c and c# the same?

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where tie beam is used? what is the pupose? what dimension of tie beam can provided and number and diameter of steel bars to be used between the columns of 1333mm and 1400.

2307


In power plant to measure vibration of a turbine we install sensors. Before install this sensor we have to set gap voltage. What is meant by gap voltage and its use?

1075


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Explain the action.

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List out the available drill modes? : sap bobi

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346


What are the webmaster tools?

21