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MCQs

Total Questions : 103 | Page 3 of 11 pages
Question 21. Errors are introduced by ________
  1.    capacitance
  2.    inductance
  3.    resistance
  4.    impedance
 Discuss Question
Answer: Option B. -> inductance
Answer: (b).inductance
Question 22. Power coil has a low value of ________
  1.    inductance
  2.    capacitance
  3.    resistance
  4.    impedance
 Discuss Question
Answer: Option C. -> resistance
Answer: (c).resistance
Question 23. Low power factor wattmeters are designed to ________
  1.    have a low torque
  2.    have a high torque
  3.    have a medium torque
  4.    have no torque
 Discuss Question
Answer: Option A. -> have a low torque
Answer: (a).have a low torque
Question 24. Power loss in the current coil is ________
  1.    less
  2.    more
  3.    intermediate
  4.    very less
 Discuss Question
Answer: Option B. -> more
Answer: (b).more
Question 25. Resistance of pressure coil in a low power factor dynamometer type wattmeter is ________
  1.    once time
  2.    three times
  3.    hundred times
  4.    ten times
 Discuss Question
Answer: Option D. -> ten times
Answer: (d).ten times
Question 26. Pressure coil has no error.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 27. Induction type instruments are used for ____________
  1.    A.C. measurements
  2.    D.C. measurements
  3.    Resistance measurements
  4.    Voltage measurements
 Discuss Question
Answer: Option A. -> A.C. measurements
Answer: (a).A.C. measurements
Question 28. Error in a pressure coil can be compensated.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 29. Driving system in an induction type single phase energy meter consists of _________
  1.    one magnet
  2.    two electromagnets
  3.    five electromagnets
  4.    ten magnets
 Discuss Question
Answer: Option B. -> two electromagnets
Answer: (b).two electromagnets
Question 30. Series electromagnet consists of _________
  1.    L shaped laminations
  2.    T shaped laminations
  3.    U shaped laminations
  4.    Y shaped laminations
 Discuss Question
Answer: Option C. -> U shaped laminations
Answer: (c).U shaped laminations

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