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MCQs

Total Questions : 222 | Page 5 of 23 pages
Question 41. Pin type insulators are generally not used for voltages beyond
  1.    1 kV
  2.    11 kV
  3.    22 kV
  4.    33 kV
 Discuss Question
Answer: Option D. -> 33 kV
Question 42. Which of the following is usually not the generating voltage?
  1.    6.6 kV
  2.    8.8 kV
  3.    11 kV
  4.    13.2 kV
 Discuss Question
Answer: Option B. -> 8.8 kV
Question 43. When the interconnector between two stations has large reactance
  1.    The transfer of power will take place with voltage fluctuation and noise
  2.    The transfer of power will take place with least loss
  3.    The stations will fall out of step because of large angular displacement between the stations
  4.    None of the above
 Discuss Question
Answer: Option C. -> The stations will fall out of step because of large angular displacement between the stations
Question 44. Distribution lines in India generally use
  1.    Wooden poles
  2.    R.C.C. poles
  3.    Steel towers
  4.    None of the above
 Discuss Question
Answer: Option B. -> R.C.C. poles
Question 45. A 3-phase 4-wire system is commonly used on
  1.    Primary transmission
  2.    Secondary transmission
  3.    Primary distribution
  4.    Secondary distribution
 Discuss Question
Answer: Option D. -> Secondary distribution
Question 46. Which of the following regulations is considered best?
  1.    50 %
  2.    20 %
  3.    10 %
  4.    2 %
 Discuss Question
Answer: Option D. -> 2 %
Question 47. Overhead lines generally use
  1.    Copper conductors
  2.    All aluminium conductors
  3.    A.C.S.R. conductors
  4.    None of these
 Discuss Question
Answer: Option C. -> A.C.S.R. conductors
Question 48. Low voltage cables are meant for use up to
  1.    1.1 kV
  2.    3.3 kV
  3.    6.6 kV
  4.    11 kV
 Discuss Question
Answer: Option A. -> 1.1 kV
Question 49. By which of the following systems electric power may be transmitted?
  1.    Overhead system
  2.    Underground system
  3.    Both (A) and (B)
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both (A) and (B)
Question 50. Transmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is
  1.    25 percent
  2.    50 percent
  3.    75 percent
  4.    100 percent
 Discuss Question
Answer: Option B. -> 50 percent

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