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Economics of Power Generation

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

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

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

0.5 leading
0.95 lagging
0.5 lagging
0.95 leading

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Economics of Power Generation
During load shedding

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

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Economics of Power Generation
Maximum demand tariff is generally not applied to domestic consumers because

Their load factor is low
They consume less power
Their maximum demand is low
None of the listed here

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Economics of Power Generation
In which?of the following power plants the maintenance cost is usually high?

Hydro-electric power plants
Thermal power plants
Diesel engine power plants
Nuclear power plant

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Economics of Power Generation
The connected load of a domestic consumer is around

120 kW
40 kW
5 kW
80 kW

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