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Electrical Machines

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

 8.
 16.
 32.
  4.

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Electrical Machines
Maximum power developed by a synchronous motor depends on

 supply voltage and excitation
 excitation and load angle
 supply voltage, load angle and excitation
 supply voltage and load angle

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Electrical Machines
In DC machine yoke offers

 mechanical protection to the machine
 flux path completion
 produce working flux
 both A and B

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Electrical Machines
Induction motors have the advantage of

  simple in construction.
  less cost.
  all of below.
  less maintenance.

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Electrical Machines
The speed regulation of a DC motor is given as

 (NnL − NfL)/NfL.
 (NfL − NnL)/NnL.
 NnL/NfL.
 NnL − NfL.

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Electrical Machines
The induction motor shaft is made of

  mild steel.
  cast iron.
  aluminium.
  stainless steel.

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MORE MCQ ON Electrical Machines

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