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Economics of Power Generation

Economics of Power Generation
In order to improve the power factor in case of 3 phase loads, the capacitors are connected in

Star
Star or delta
Delta
None of the listed here

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Economics of Power Generation
The area under a load curve gives

energy consumed
None of these
maximum demand
average demand

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Economics of Power Generation
Annual depreciation of the plant it proportional to the earning capacity of the plant vide

None of these
sinking fund depreciation
straight line depreciation
reducing balances depreciation

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Economics of Power Generation
When the power factor is increased

Active power increases
Line current decreases
Line current increases
Active power decreases

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Economics of Power Generation
Annual depreciation cost is calculated by

Sinking fund method
Straight line method
Both sinking fund and straight line method
None of the listed here

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

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

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