all interview questions with answers of ntpc (2000-2009

0 Answers   Hetero, NTPC,

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What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

0 Answers   K-Electric Limited,

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if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

1 Answers  

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which seven wonders are selected in india in 2008-2009

2 Answers  

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whats the existence of reactive power and when it arises?

0 Answers   IIT,

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What is 11 N1 and 12 N2 in single phase Transformer ?

0 Answers  

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how we identify between current transformer and potential transformer without having it name plate?

5 Answers   L&T, TATA,

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how to calaculate the amps in transformer ?

2 Answers  

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In the UVR(Under Voltage Relay) there is a knob for the hysteresis setting. what is this setting? its threshold is given from 5% to 50%. please help me....

2 Answers  

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what is the significance of 3.5 core cable? or what does this half core mean and why is it required?

5 Answers  

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Ehat is shunt motor?

4 Answers   L&T, Siemens,

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what is class of SPD and dittels of all class ?

0 Answers  

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