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Electrical Machines

Electrical Machines
Lamination of transformer core is made of

 cast steel.
  cast iron.
 wrought iron.
  silicon steel.

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Electrical Machines
Belt conveyors offer _______________ starting torque.

  zero.
  low.
  high.
  medium.

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Electrical Machines
A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is

 32.
 16.
 8.
  4.

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Electrical Machines
A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power?

 2000W
 1450W
 1920W
 1820W

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Electrical Machines
If we increase the rotor reactance value, the maximum torque will

 increase
 decrease
None of these
 not changed

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Electrical Machines
To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase

 supply frequency
None of these
 rotor resistance
 supply voltage

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MORE MCQ ON Electrical Machines

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