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Economics of Power Generation

Economics of Power Generation
The most economical power factor for a consumer is generally

0.95 lagging
0.75 lagging
1
0.6 lagging

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Economics of Power Generation
Power plant is expected to have the longest life.

Any of the above
Diesel
Hydroelectric
Steam

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Economics of Power Generation
When the power factor is unity, the relation between line currnet I and supply voltage V is

None of the listed here
I is in phase with V
I leads V by 90°
I lags V by 90°

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Economics of Power Generation
Which plant can never have 100 percent load factor?

Peak load plant
Base load plant
Nuclear power plant
Hydroelectric plant

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Economics of Power Generation
The expected useful life of an hydroelectric power station is around

100 years
15 years
30 years
60 years

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Economics of Power Generation
A 130 MW generator is usually ____ cooled.

Oxygen
Nitrogen
Hydrogen
Air

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