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Economics of Power Generation

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

Ceiling fan
Room heater
Mixer grinder
Electric clock

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Economics of Power Generation
When the power factor is improved, the lagging kVAR drawn from the supply will

Remains same
Increase
None of the listed here
Decreases

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Economics of Power Generation
For a power plant which of the following constitutes running cost?

Cost of wages
Cost of lubricants
All of the listed here
Cost of fuel

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Economics of Power Generation
When the power factor is unity, the relation between line currnet I and supply voltage V is

I lags V by 90°
I leads V by 90°
None of the listed here
I is in phase with V

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Economics of Power Generation
The area under load curve gives

Maximum demand
Energy consumed
Average demand
None of the listed here

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

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

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