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Economics of Power Generation

Economics of Power Generation
________ will be least affected due to charge in supply voltage frequency.

Mixer grinder
Room heater
Electric clock
Ceiling fan

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

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

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

100 years
60 years
30 years
15 years

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Economics of Power Generation
In a 3 phase system, the line losses are

None of the listed here
Invesely proportional tocos Ф
Directly proportional to cos Ф
Inversely proportional to cos²Ф

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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

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

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Economics of Power Generation
For a diesel generating station the useful life is expected to be around

15 to 20 years
75 to 100 years
50 to 75 years
20 to 50 years

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