The wound rotor induction motor is used _____.

The wound rotor induction motor is used _____.
 
  a. to start low inertia loads
  b. for speed control and to limit starting current
  c. when reduced slip is required
  d. to increase power factor

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[Ques. 2] The capacitor-start motor is the single-phase motor type that has the _____.
 
  a. lowest efficiency
  b. highest starting torque
  c. lowest starting torque
  d. highest noise level

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[Ques. 3] In a split-phase motor, how much greater is the starting current when compared to the full-load current?
 
  a. 2 to 4 times
  b. 5 to 7 times
  c. 6 to 8 times
  d. 8 to 10 times

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[Ques. 4] How many motor designs does NEMA designate?
 
  a. 2
  b. 5
  c. 7
  d. 10

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[Ques. 5] Horsepower is used to rate the _____.
 
  a. length of operation of a motor
  b. synchronous speed of a motor
  c. output capacity of a motor
  d. thermal protection of a motor