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Electrical Machines

Electrical Machines
Eddy current loss will depends on

 Thickness
 Frequency
 Flux density
All of these

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Electrical Machines
Which of the following motor is used in grinders?

  Capacitor start capacitor run IM.
  Split phase IM.
  Capacitor start IM.
  Synchronous motor.

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Electrical Machines
For power factor improvement the synchronous motor is to be

 lightly loaded and underecited
 heavily loaded and over excited
 lightly loaded and over excited
 heavily loaded and underexcited

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Electrical Machines
For larger units high torque it is preferred to use

 Universal motor.
 Slip induction motor.
 Partial motor.
 DC shunt motor.

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Electrical Machines
Dynamic braking is employed to brake

 reversing drive
 non reversing drive
 both 1 and 2
None of these

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Electrical Machines
Universal motors are used in

All of these
 cranes
 food processing
 traction

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