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Economics of Power Generation

Economics of Power Generation
When the power factor improved, the kW capacity of alternator is

Increased
None of the listed here
Decreased
Unaffected

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Economics of Power Generation
The straight line method for calculating depreciation is based on the assumption that depreciation charge is

Constant every year
Is more in later years
Is less in early years
Is more in early years

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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

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

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

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

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Economics of Power Generation
For a power plant which of the following constitutes running cost?

Cost of lubricants
All of the listed here
Cost of wages
Cost of fuel

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

Oxygen
Nitrogen
Air
Hydrogen

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