Electrical Machines
For same HP rating and full load speed which of following motor has poor starting torque?

 Differently compounded.
 Cummulative compound.
 Shunt.
 Series.

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Electrical Machines
What is/are the necessary conditions for voltage build up in self excited generator?

All of these
 Poles should contain residual flux.
 Field winding resistance should be less than critical resistance.
 Field winding should be properly connected to armature winding.

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Electrical Machines
Flashing of DC generator means

 neutralization of residual magnetism.
  creation of residual magnetism by a DC source.
  increasing flux density by providing extra ampere-turns in field.
None of these

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