Electrical Machines
Induction motors normally use cast aluminium rotor because aluminium is

  cheaper in cost.
  lighter in weight.
  of low resistivity.
  easy to cast owing to its low melting point and is easily available.

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Electrical Machines
Two generators operating in parallel with rating 50MW and 100MW respectively. Both their respective governor settings are identical as 4%, consider same no load frequency. How will the machine share a common load of 100 MW

 50 MW and 50 MW respectively
 66.67 MW and 33.33 MW respectively
 33.33 MW and 66.67 MW respectively
 any of the above

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