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Electrical Machines

Electrical Machines
A generator may loose residual magnetism due to

  heating.
  over excitation.
  any of these.
  vibrations.

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Electrical Machines
Wave winding is prefered for which of the following rating?

 high current and low voltage
 high current and high voltage
 low current and low voltage
 low current and high voltage

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Electrical Machines
Which of the following motor is not suitable for frequent starting and stopping?

 Capacitor split phase motor
All of these
 Resistance split phase motor
 Capacitor run motor

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Electrical Machines
Which of the following machine will have maximum efficiency?

 Electrical power generator.
 DC motor.
 Induction motor.
  Electrical power transformer.

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Electrical Machines
Eg (generated emf) and Eb (back emf) both are

 different.
 same.
 none of above.
 changes.

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Electrical Machines
Commonly used starters of cage motor is

  DOL.
None of these
  star delta.
  both A and B.

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MORE MCQ ON Electrical Machines

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