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Electrical Machines

Electrical Machines
Stepper motor is used in

 food processing
All of these
 computer printers
 traction

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Electrical Machines
What will be the eddy current loss if the supply frequency of a transformer becomes double?

 Four times.
 Doubled.
 Eight times.
 Remains same.

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Electrical Machines
Type of single phase motor having highest power factor at full load is

  split phase.
  shaded pole type.
  capacitor start.
  capacitor run.

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Electrical Machines
The direction of rotation of a DC compound motor can be reversed by interchanging

 series field connections.
 shunt field connections.
 armature or field connections.
 armature connections.

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Electrical Machines
The wattage rating of a ceiling fan motor will be

  50 - 150 W.
 250 - 500 W.
 10 - 20 W.
 200 - 250 W.

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Electrical Machines
Dummy coils are used for

 reducing armature reaction.
 mechanical balancing.
 increasing efficiency.
All of these

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MORE MCQ ON Electrical Machines

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