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Economics of Power Generation

Economics of Power Generation
When the power factor is increased

Line current decreases
Active power decreases
Active power increases
Line current increases

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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

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

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Economics of Power Generation
A 130 MW generator is usually ____ cooled.

Air
Hydrogen
Oxygen
Nitrogen

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Economics of Power Generation
Salvage value of the plant is always

Zero
Negative
Any of the listed here
Positive

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

Decrease
None of the listed here
Remains same
Increase

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

Surge absorbers
All of these
Horn gaps
Rod gaps

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