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Electrical Machines

Electrical Machines
Maximum power developed depends on

 load angle
 reactance
 voltage
 both 1and 2

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Electrical Machines
Methods of synchronizing of alternator may be done by

  all of these.
 all bright lamp method.
 one dark two bright.
 all dark lamp method.

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Electrical Machines
A generator may loose residual magnetism due to

  over excitation.
  heating.
  any of these.
  vibrations.

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Electrical Machines
In an induction motor, what is the ratio of rotor input to rotor copper loss?

 1-S
 1/S
 1/(1-S)
 S

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Electrical Machines
In an alternator the voltage generated per phase is proportional to

  frequency of waveform.
  flux per pole.
All of these
  number of turns in coil.

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Electrical Machines
Generators work on the principle of production of

 dynamically induced emf.
None of these
 statically induced emf.
 dynamically and statically induced emf.

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MORE MCQ ON Electrical Machines

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