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Economics of Power Generation

Economics of Power Generation
A load takes a current of I at a p. f. Of cos Ф. The wattless component of current is

None of the listed here
I tan Ф
I sin Ф
I cos Ф

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Economics of Power Generation
A load draws a power of 10 kW at a power factor of 0.707 lagging. The lagging kVAR drawn from the supply will be

15kVAR
20 kVAR
10 kVAR
5 kVAR

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Economics of Power Generation
Salvage value of the plant is always

Positive
Zero
Negative
Any of the listed here

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Economics of Power Generation
A consumer has to pay lesser fixed charges in

flat rate tariff
any of the above
two part tariff
maximum demand tariff

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Economics of Power Generation
In the diminishing value method for calculating depreciation, the annual depreciation charge is independent of

Useful life of equipment
Scrap value
The rate of interest
Initial value of equipment

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

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

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