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Electrical Machines

Electrical Machines
A DC generator beyond critical resistance will generate

 maximum current.
 maximum voltage.
 maximum power.
 no voltage.

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Electrical Machines
The brushes of a DC machine should be placed on the

 armature midway between poles.
 commutator in the inter polar axis.
 armature in the polar axis.
 commutator in the polar axis.

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Electrical Machines
In shapers and slotters which motor are preferred?

  Double cage motor.
  Synchronous motor.
  Slip ring IM.
  Squirrel cage IM.

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Electrical Machines
In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is

 any of the above
 infinite value
 maximum
 zero

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Electrical Machines
Shunt field of DC generators consists of--------number of turns and ---------- conductors respectively

 less and thick
 less and thin
 large and thick
 large and thin

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Electrical Machines
Breadth factor is defined as the ratio of

None of these
 emf with distributed winding to emf with concentrated winding.
 both 1 and 2.
 emf with concentrated winding to emf with distributed winding.

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MORE MCQ ON Electrical Machines

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