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Economics of Power Generation

Economics of Power Generation
Power plant is expected to have the longest life.

Steam
Hydroelectric
Any of the above
Diesel

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Economics of Power Generation
Which of the following is the disadvantage due to low power factor ?

High cost of equipment for a given load
Poor voltage regulation
Increased transmission losses
All of these

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Economics of Power Generation
Low power factor is usually not due to

Arc lamps
Fluorescent tubes
Induction motors
Incandescent lamp

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Economics of Power Generation
Load factor of a power station is defined as

(average load x maximum demand)172
maximum demand/average load
average load x maximum demand
average load/maximum demand

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

Supercharged engine
Diesel engine
Petrol engine
All of these

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Economics of Power Generation
Alternators and transformers are rated in

None of the listed here
kVAR
kVA
kW

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