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Electrical Machines

Electrical Machines
Maximum power developed depends on

 voltage
 load angle
 reactance
 both 1and 2

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Electrical Machines
An unexcited single phase synchronous motor is

 AC series motor.
  universal motor.
 repulsion motor.
 reluctance motor.

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Electrical Machines
In DC generator, armature reaction refers to what?

None of these
 Effect of armature flux on the load.
 Effect of field flux on the armature flux.
  Effect of armature flux on the main field flux.

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Electrical Machines
A commutator in dc machine provide ----------------- rectification?

 half wave controlled
 full wave
 full wave controlled
 half wave

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Electrical Machines
Secondary winding of an auto transformer is also called

 damping winding.
 compensating winding.
  common winding.
 tertiary winding.

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Electrical Machines
Speed of DC motor can be controlled by varying

 all of these.
 applied voltage.
 its flux oer pole.
 resistance of armature culture.

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MORE MCQ ON Electrical Machines

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