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Electrical Machines

Electrical Machines
If the field current is reduced to zero the maximum power developed by alternator is

  2.73 KW.
 0.9103 KW.
 5.46 KW.
 1.644 KW.

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Electrical Machines
The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in

  star.
  delta or star according to need.
None of these
  delta.

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Electrical Machines
Synchronous condensers are used to

 improve the power factor
All of these
 reduce hunting
 improve starting torque

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Electrical Machines
An ideal DC generated is one that has _____________ voltage regulation.

  zero.
 low.
 negative.
 positive.

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Electrical Machines
stepped cores are used in transformers in order to reduce

 volume of copper.
 iron loss.
 reluctance of core.
 volume of iron.

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Electrical Machines
Which type motors are preferred for lathes?

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

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