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Electrical Machines

Electrical Machines
The armature MMF waveform of a DC machine is

  sinusoidal.
  rectangular.
  triangular.
  pulsating.

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Electrical Machines
In DC machine shape of main field flux distribution is?

 triangular
 flat tapped or trapezoidal
 peaky in nature
 saddle shape

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Electrical Machines
Which of the following DC Motor requires 3 point starter?

  Series motor.
  Shunt motor as well as compound motors.
  Shunt, compound and series motor.
  Shunt motor.

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Electrical Machines
Which of the DC Motor use flywheel?

 Shunt motor.
 Cumulatively compound motor.
 Series motor.
 Differently compared motor.

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Electrical Machines
Armature resistance control method is also called as-----------?

 constant voltage control
 constant torque control
 constant current control
 constant power control

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Electrical Machines
Ward-Leonard control is basically a ___________ control method.

 Armature resistance control.
 Field diverter control.
 Field control.
 Armature voltage control.

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MORE MCQ ON Electrical Machines

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