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Economics of Power Generation

Economics of Power Generation
Incase of ______ fuel transportation is the major problem.

hydro-electric power plants
nuclear power plants
diesel power plants
thermal power plants

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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

cold reserve
spinning reserve
firm power
hot reserve

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Economics of Power Generation
In a power plant if the maximum demand on the plant is equal to the plant capacity, then

Load factor will be nearly 60%
Plant reserve capacity will be zero
Diversity factor will be unity
Load factor will be unity

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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
Nuclear power plant
Diesel engine power plants

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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

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

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Economics of Power Generation
Which of the following devices may be used to provide protection against lightening over voltages ?

All of these
Horn gaps
Surge absorbers
Rod gaps

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