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Electrical Machines

Electrical Machines
In a DC Shunt Motor if the load current increases then field flux

 decreases
 decreases.
 increases.
 remains constant.

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Electrical Machines
The maximum power developed in cylindrical synchronous machine is occurs at a load angle of

 Greater than 90o.
 less than 90o.
 90o.
 0o.

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Electrical Machines
Stability of a synchronous motor ---------- with the increase in excitation.

 increases
 decreases
 remains unaffected
 any of the above

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Electrical Machines
The voltage regulation of a DC generator at full load being zero implies that the generator is

  deferentially compounded.
  series connected.
  cumulatively compounded.
 shunt connected.

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Electrical Machines
The induction motor shaft is made of

  cast iron.
  aluminium.
  mild steel.
  stainless steel.

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Electrical Machines
_____________ types of induction motor are widely used.

  Single phase IM.
  Three phase IM.
  Slip ring IM.
  Squirrel cage IM.

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MORE MCQ ON Electrical Machines

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