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MCQs

Total Questions : 103 | Page 5 of 11 pages
Question 41. What is the role of a multiplier?
  1.    it multiplies the voltage and current
  2.    divides the alternating voltage and current
  3.    supplies instantaneous voltage and current
  4.    multiplies alternating voltage and current
 Discuss Question
Answer: Option D. -> multiplies alternating voltage and current
Answer: (d).multiplies alternating voltage and current
Question 42. Analog signal is converted _________
  1.    into oscillations
  2.    into digital
  3.    into pulses
  4.    into current
 Discuss Question
Answer: Option B. -> into digital
Answer: (b).into digital
Question 43. Frequency of oscillation in an electronic energy meter depends on __________
  1.    output current of multiplier
  2.    output voltage of multiplier
  3.    output power of multiplier
  4.    input resistance of multiplier
 Discuss Question
Answer: Option A. -> output current of multiplier
Answer: (a).output current of multiplier
Question 44. An electronic energy meter is advantageous compared to conventional ones.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 45. Energy meter can be directly used in measurement.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 46. Creeping in an energy meter can be found using _________
  1.    creep adjustment
  2.    preliminary light load adjustment
  3.    full load u.p.f adjustment
  4.    light load adjustment
 Discuss Question
Answer: Option B. -> preliminary light load adjustment
Answer: (b).preliminary light load adjustment
Question 47. Light load adjustment involves _________
  1.    applying rated voltage across the pressure coil
  2.    adjusting a light load
  3.    applying rated current across the transformer
  4.    applying rated voltage across the current coil
 Discuss Question
Answer: Option A. -> applying rated voltage across the pressure coil
Answer: (a).applying rated voltage across the pressure coil
Question 48. Preliminary light load adjustment involves _________
  1.    applying rated voltage across current coil
  2.    making use of a light load
  3.    applying rated voltage across pressure coil
  4.    adjusting the light load
 Discuss Question
Answer: Option C. -> applying rated voltage across pressure coil
Answer: (c).applying rated voltage across pressure coil
Question 49. Creep adjustment involves _________
  1.    adjusting the creep
  2.    exciting the current coil
  3.    adjusting the turns ratio
  4.    exciting the pressure coil
 Discuss Question
Answer: Option D. -> exciting the pressure coil
Answer: (d).exciting the pressure coil
Question 50. Low power factor adjustment involves _________
  1.    adjusting the power factor at lower loads
  2.    applying rated voltage to pressure coil and a p.f. of 0.5 for current coil
  3.    only applying rated voltage to pressure coil
  4.    only a p.f. of 0.5 for the current coil
 Discuss Question
Answer: Option B. -> applying rated voltage to pressure coil and a p.f. of 0.5 for current coil
Answer: (b).applying rated voltage to pressure coil and a p.f. of 0.5 for current coil

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