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Economics of Power Generation

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

Any of the above
Hydroelectric
Diesel
Steam

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Economics of Power Generation
An ideal value of power factor is

1
0.5
0.75
0.8

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Economics of Power Generation
In which?of the following power plants the maintenance cost is usually high?

Thermal power plants
Diesel engine power plants
Nuclear power plant
Hydro-electric power plants

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Economics of Power Generation
Which of the following, in a thermal power plant, is not a fixed cost?

Interest on capital
Insurance charges
Depreciation
Fuel cost

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Economics of Power Generation
The lagging reactive power drawn by a load is zero. The power factor of the load is

0.75
0.5
None of the listed here
1

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Economics of Power Generation
When the power factor is increased

Line current decreases
Line current increases
Active power decreases
Active power increases

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