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Economics of Power Generation

Economics of Power Generation
A load drwas active power(P), apparent power(S) and reactive power (Q) from the line. The power factor of the load is

Q/P
P/S
S/P
P/Q

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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
Nuclear power plant
Hydro-electric power plants

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Economics of Power Generation
Most fundamental method for calculating the depreciation of equipment is

Sinking fund method
None of the listed here
Diminishing value method
Straight line method

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Economics of Power Generation
Arc and induction furnaces operate on

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

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Economics of Power Generation
When the demand of consumer is not met by a power plant, it will resort to which of the following?

Penalising high load consumers by increasing the charges for electricity
Power factor improvement at the generators
Load shedding
Efficient plant operation

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Economics of Power Generation
Diversity factor has dirrect effect on the

Both fixed and running cost of unit generated
Running cost of unit generated
Fixed cost of unit generated
None of the listed here

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