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Economics of Power Generation

Economics of Power Generation
Load factor of a power station is generally

less than unity
equal to zero Diversity factor is always
more than unity
equal to unity

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Economics of Power Generation
In a power plant if the maximum demand on the plant is equal to the plant capacity, then

Plant reserve capacity will be zero
Diversity factor will be unity
Load factor will be nearly 60%
Load factor will be unity

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Economics of Power Generation
The only motor that can be worked at leading power factor is

None of the listed here
3-phase induction motor
1- phase induction motor
Synchronous motor

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Economics of Power Generation
Arc and induction furnaces operate on

None of the listed here
Very Low lagging p. f.
Very high leading p. f.
Very low leading p. f.

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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
Hydro-electric power plants
Nuclear power plant
Thermal power plants

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Economics of Power Generation
Is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order,

Firm power
Cold reserve
Hot reserve
Spinning reserve

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