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Economics of Power Generation

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/S
S/P
P/Q
Q/P

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

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

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Economics of Power Generation
Salvage value of the plant is always

Positive
Zero
Negative
Any of the listed here

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Economics of Power Generation
When the demand of consumer is not met by a power plant, it will resort to which of the following?

Efficient plant operation
Load shedding
Power factor improvement at the generators
Penalising high load consumers by increasing the charges for electricity

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Economics of Power Generation
Alternators and transformers are rated in

None of the listed here
kVAR
kW
kVA

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Economics of Power Generation
For the same cylinder dimensions and speed, which of the following engine will produce least power?

Diesel engine
Supercharged engine
Petrol engine
All of these

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