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Economics of Power Generation

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

Remains same
Decrease
Increase
None of the listed here

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Economics of Power Generation
A load drwas active power(P), apparent power(S) and reactive power (Q) from the line. The power factor of the load is

S/P
Q/P
P/S
P/Q

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Economics of Power Generation
Arc and induction furnaces operate on

Very high leading p. f.
Very Low lagging p. f.
None of the listed here
Very low leading p. f.

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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,

Cold reserve
Hot reserve
Spinning reserve
Firm power

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Economics of Power Generation
Salvage value of the plant is always

Negative
Positive
Zero
Any 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?

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

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