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Electrical Machines

Electrical Machines
Which motor cannot be started on no load?

 cumulative compound motors
 both B and C
 series motors
 shunt motors

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Electrical Machines
The armature reaction mmf in a DC machines has a form of

 trapezoidal.
  triangular.
 rectangular.
 sinusoidal.

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Electrical Machines
Which type motors are preferred for lathes?

 Synchronous motor.
 Either A or B.
 DC shunt motors.
 Squirrel Cage induction motor.

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Electrical Machines
The induction motor shaft is made of

  cast iron.
  mild steel.
  stainless steel.
  aluminium.

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Electrical Machines
Which of the DC Motor use flywheel?

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

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Electrical Machines
The constant losses in transformer is/are

 hysteresis loss.
 copper loss.
 both 2 and 3.
 eddy current loss.

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MORE MCQ ON Electrical Machines

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