Single Phase Induction Motors

91. Which of the following motors can be used for unity power factor?

  1. Capacitor run motor
  2. Shaded pole motor
  3. Hysteresis motor
  4. Schrage motor

Correct answer: (D)
Schrage motor

92. Which of the following motors has highest starting torque?

  1. Repulsion motor
  2. Shaped pole motor
  3. Capacitor-start motor
  4. Split-phase motor

Correct answer: (C)
Capacitor-start motor

93. Which of the following motors has two separate windings on the motor?

  1. Repulsion motor
  2. Repulsion induction motor
  3. Repulsion start induction run motor
  4. None of the above

Correct answer: (B)
Repulsion induction motor

94. Which of the following motors is inherently self starting?

  1. Split motor
  2. Shaded-pole motor
  3. Reluctance motor
  4. None of these

Correct answer: (B)
Shaded-pole motor

95. Which of the following motors is preferred for tape-recorders?

  1. Shaded pole motor
  2. Hysteresis motor
  3. Two value capacitor motor
  4. Universal motor

Correct answer: (B)
Hysteresis motor

96. Which of the following motors is used for unity power factor?

  1. Hysteresis motor
  2. Schrage motor
  3. Universal motor
  4. Reluctance motor

Correct answer: (B)
Schrage motor

97. Which of the following motors is used in a situation where load increases with speed?

  1. Induction motor
  2. Three-phase series motor
  3. Schrage motor
  4. Hysteresis motor

Correct answer: (B)
Three-phase series motor

98. Which of the following motors is used in mixies?

  1. Repulsion motor
  2. Reluctance motor
  3. Hysteresis motor
  4. Universal motor

Correct answer: (D)
Universal motor

99. Which of the following motors is used in tape-recorders?

  1. Hysteresis motor
  2. Reluctance motor
  3. Capacitor-run motor
  4. Universal motor

Correct answer: (A)
Hysteresis motor

100. Which of the following motors will operate at high power factor?

  1. Shaped pole motor
  2. Split phase motor
  3. Capacitor start motor
  4. Capacitor run motor

Correct answer: (D)
Capacitor run motor

Page 10 of 11