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Electrical Machines

Electrical Machines
A DC generator beyond critical resistance will generate

 no voltage.
 maximum voltage.
 maximum power.
 maximum current.

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Electrical Machines
In a transformer, hysteresis and eddy current losses depend upon

 supply frequency
 maximum flux density
 load current
 both 2 and 3

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Electrical Machines
What is the actual arrangement of series wound generator?

 Armature and field both are parallel.
 Armature winding is in series with load.
 Armature and field both are connected.
  Armature and field both are in series with the load.

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Electrical Machines
Rotating magnetic field is produced in an induction motor because of

  rotor winding.
None of these
  stator winding.
  either stator winding or rotor winding.

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Electrical Machines
If input of a transformer is square wave the output will be

 square wave.
 triangular wave.
  pulsed wave.
 sine wave.

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Electrical Machines
A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is

 ineffective.
 cross – magnetizing.
 magnetizing.
  demagnetizing.

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MORE MCQ ON Electrical Machines

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