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MCQs

Total Questions : 322 | Page 4 of 33 pages
Question 31. Which of the following power plants need the least period for installation ?
  1.    Thermal power plant
  2.    Diesel power plant
  3.    Nuclear power plant
  4.    Hydro-electric power plant
 Discuss Question
Answer: Option B. -> Diesel power plant
Question 32. Diversity factor has direct effect on the
  1.    fixed cost of unit generated
  2.    running cost of unit generated
  3.    both (A) and (B)
  4.    neither (A) nor (B)
 Discuss Question
Answer: Option A. -> fixed cost of unit generated
Question 33. During load shedding
  1.    system power factor is changed
  2.    some loads are switched off
  3.    system voltage is reduced
  4.    system frequency is reduced Efficiency is the secondary consideration in
 Discuss Question
Answer: Option B. -> some loads are switched off
Question 34. Which of the following plants ?
  1.    Base load plants
  2.    Peak load plants
  3.    Both (A) and (B)
  4.    none of the above
 Discuss Question
Answer: Option B. -> Peak load plants
Question 35. The primary reason for low power factor is supply system is due to installation of
  1.    induction motors
  2.    synchronous motors
  3.    single phase motors
  4.    d.c. motors
 Discuss Question
Answer: Option A. -> induction motors
Question 36. Power plant having maximum demand more than the installed rated capacity will have utilisation factor
  1.    equal to unity
  2.    less than unity
  3.    more than unity
  4.    none of the above
 Discuss Question
Answer: Option C. -> more than unity
Question 37. Load curve is useful in deciding the
  1.    operating schedule of generating units
  2.    sizes of generating units
  3.    total installed capacity of the plant
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 38. Approximate estimation of power demand can be made by
  1.    Load survey method
  2.    Statistical methods
  3.    Mathematical method
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 39. The efficiency of a plant is of least concern when it is selected as
  1.    peak load plant
  2.    casual run plant
  3.    either (A) or (B)
  4.    base load plant
 Discuss Question
Answer: Option C. -> either (A) or (B)
Question 40. Annual operating expenditure of a power plant consists of
  1.    fixed charges
  2.    semi-fixed charges
  3.    running charges
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above

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