Induction Motor MCQs Part 26

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Electrical Engineering MCQ on Induction Motor Part 26

The repulsion start induction run motor is employed because of

The repulsion start induction run motor is employed because of

  1. Good power factor
  2. High efficiency
  3. High starting torque
  4. Minimum cost

Correct answer: 3. High starting torque

The motor that has highest starting torque

The motor that has highest starting torque

  1. Capacitor-start motor
  2. Repulsion motor
  3. Shaped pole motor
  4. 0

Correct answer: 1. Capacitor-start motor

The single-phase induction motor that is generally used in time phonographs

The single-phase induction motor that is generally used in time phonographs

  1. Capacitor start capacitor run
  2. Resistance start
  3. Shaded pole
  4. Universal

Correct answer: 3. Shaded pole

The speed and load characteristics of a universal motor are identical to

The speed and load characteristics of a universal motor are identical to

  1. DC Motor
  2. DC Series motor
  3. DC Shunt motor
  4. None of these

Correct answer: 2. DC Series motor

The most common cause of brush sparking in a universal motor is

The most common cause of brush sparking in a universal motor is

  1. High commutator mica
  2. Open armature winding
  3. Shorted armature or field winding
  4. All of these

Correct answer: 4. All of these

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