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Economics of Power Generation

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

Air
Oxygen
Hydrogen
Nitrogen

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Economics of Power Generation
A consumer who consumes more electrical energy should pay

Less running charges per unit
None of the listed here
More fixed charges per unit
Less fixed charges per unit

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Economics of Power Generation
Generators for peak load plants are usually designed for maximum efficiency at

50 to 75 % percent full load
Full load
25 percent overload
25 to 50 % percent full load

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

60 years
100 years
15 years
30 years

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Economics of Power Generation
A low utilization factor for a plant indicates that

plant is used for base load only
plant is under maintenance
plant is used for peak load as well as base load
plant is used for stand by purpose only

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Economics of Power Generation
The smaller the lagging reactive power drawn by the circuit

The smaller is the p. f
The higher is the p. f.
None of the listed here
The higher is the active power

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