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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

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

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Economics of Power Generation
Annual depreciation cost is calculated by

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

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Economics of Power Generation
________ is invariably used for peak load

Nuclear power plant
Steam turbine plant
None of these
Pumped storage plant

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Economics of Power Generation
The depreciation charges in diminishing value method are

Heavy in later years
Heavy in early years
Same in all years
Light in early years

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Economics of Power Generation
During load shedding

Some loads are switched off
System frequency is reduced
System power factor is changed
System voltage is reduced

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Economics of Power Generation
Which of the following is an advantage of static capacitor for power factor improvement?

All of the listed here
Low losses
Ease in installation
Little maintenance cost

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