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Economics of Power Generation - Interview Questions and Answers

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46. Which of the following power plants need the least period for installation ?
A. Thermal power plant
B. Diesel power plant
C. Nuclear power plant
D. Hydro-electric power plant
Explanation:
47. For a consumer the most economical power factor is generally
A. 0.5 lagging
B. 0.5 leading
C. 0.95 lagging
D. 0.95 leading
Explanation:
48. For a power plant which of the following constitutes running cost ?
A. Cost of wages
B. Cost of fuel
C. Cost of lubricants
D. All of the above
Explanation:
49. Generators for peak load plants are usually designed for maximum efficiency at
A. 25 to 50 percent full load
B. 50 to 75 percent full load
C. full load
D. 25 percent overload
Explanation:
50. Which of the following is the disadvantage due to low power factor ?
A. Poor voltage regulation
B. Increased transmission losses
C. High cost of equipment for a given load
D. All of the above
Explanation:
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