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Economics of Power Generation

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
5 kVAR
10 kVAR

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Economics of Power Generation
Is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order,

Firm power
Cold reserve
Hot reserve
Spinning reserve

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Economics of Power Generation
For a large installation, it is better to apply

None of the listed here
Individual correction to small motors
Bulk correction to large motors
Individual correction to large motors

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Economics of Power Generation
For any type of consumer the ideal tariif is

Two part tariff
Three part tariff
Block rate tariff
Any of the listed here

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

0.95 lagging
0.95 leading
0.5 leading
0.5 lagging

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Economics of Power Generation
________ will be least affected due to charge in supply voltage frequency.

Mixer grinder
Electric clock
Room heater
Ceiling fan

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