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Economics of Power Generation

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

0.95 leading
0.5 leading
0.95 lagging
0.5 lagging

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Economics of Power Generation
When the power factor of generating station is improved, the cost per unit

Remains same
Decreases
None of the listed here
Increases

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Economics of Power Generation
Which of the following is not a method for estimating depreciation charges?

Halsey
Diminishing value method
Straight line method
Sinking fund method

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Economics of Power Generation
An ideal value of power factor is

0.8
1
0.75
0.5

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Economics of Power Generation
Generating capacity connected to the bus bars and ready to take load when switched on is known as

firm power
hot reserve
spinning reserve
cold reserve

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Economics of Power Generation
In a 3 phase system, the line losses are

Directly proportional to cos Ф
Inversely proportional to cos²Ф
None of the listed here
Invesely proportional tocos Ф

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