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Economics of Power Generation

Economics of Power Generation
When the power factor improved, the kW capacity of alternator is

Decreased
Increased
None of the listed here
Unaffected

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Economics of Power Generation
Most of the loads are

Resistive
Inductive
Capacitive
None of the listed

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Economics of Power Generation
power plant cannot have single unit of 100 MW.

Diesel
Hydroelectric
Steam
Any of the above
Nuclear

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Economics of Power Generation
Load factor of a power station is defined as

average load x maximum demand
(average load x maximum demand)172
average load/maximum demand
maximum demand/average load

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Economics of Power Generation
The power transformer is usually rated in

kWh
kVAR
kVA
kW

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Economics of Power Generation
When the power factor is unity, the relation between line currnet I and supply voltage V is

I is in phase with V
I lags V by 90°
None of the listed here
I leads V by 90°

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