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Economics of Power Generation

Economics of Power Generation
For a consumer most economical power factor is generally

0.95 leading
0.95 lagging
0.5 lagging
0.5 leading

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Economics of Power Generation
Annual depreciation cost is calculated by

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

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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
P/S
Q/P

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Economics of Power Generation
Approximate estimation of power demand can be made by

All of the listed here
Mathematical method
Load survey method
Statistical methods

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Economics of Power Generation
A consumer who consumes more electrical energy should pay

Less running charges per unit
None of the listed here
Less fixed charges per unit
More fixed charges per unit

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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
Ease in installation
Low losses
Little maintenance cost

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