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Electrical Engineering

Economics Of Power Generation MCQs

Practice Economics Of Power Generation MCQs for competitive exams.

Economics Of Power Generation MCQs

Practice questions from this topic.

Load curve is useful in deciding the

  1. A. operating schedule of generating units
  2. B. sizes of generating units
  3. C. total installed capacity of the plant
  4. D. all of the above
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Power plant having maximum demand more than the installed rated capacity will have utilisation factor

  1. A. equal to unity
  2. B. less than unity
  3. C. more than unity
  4. D. none of the above
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The primary reason for low power factor is supply system is due to installation of

  1. A. induction motors
  2. B. synchronous motors
  3. C. single phase motors
  4. D. d.c. motors
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Which of the following types of power plants are used in power generation?

  1. A. Base load plants
  2. B. Peak load plants
  3. C. Both (A) and (B) D. None of the above
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During load shedding

  1. A. system power factor is changed
  2. B. some loads are switched off
  3. C. system voltage is reduced
  4. D. system frequency is reduced Efficiency is the secondary consideration in
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Diversity factor has direct effect on the

  1. A. fixed cost of unit generated
  2. B. running cost of unit generated
  3. C. both (A) and (B) D. neither (A) nor (B)
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Which of the following power plants need the least period for installation ?

  1. A. Thermal power plant
  2. B. Diesel power plant
  3. C. Nuclear power plant
  4. D. Hydro-electric power plant
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In two part tariff, variation in load factor will affect

  1. A. fixed charges
  2. B. operating or running charges
  3. C. both (A) and (B) D. either (A) or (B)
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In a distribution system, in order to improve power factor, the synchronous capacitors are installed

  1. A. at the receiving end
  2. B. at the sending end
  3. C. either (A) or (B) D. none of the above
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Which of the following is the disadvantage of a synchronous condenser ?

  1. A. High maintenance cost
  2. B. Continuous losses in motor
  3. C. Noise
  4. D. All of the above
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A synchronous condenser is virtually which of the following?

  1. A. Induction motor
  2. B. Under excited synchronous motor
  3. C. Over excited synchronous motor
  4. D. D.C. generator
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Generators for peak load plants are usually designed for maximum efficiency at

  1. A. 25 to 50 percent full load
  2. B. 50 to 75 percent full load
  3. C. full load
  4. D. 25 percent overload
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