Electrical Machines
If the speed of a dc motor increases with load torque, then it is a

 series motor
 differentially compounded motor
 permanent magnet motor
 comulatively compounded motor

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Electrical Machines
Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

  rotate in direction opposite to that before maintenance.
  rotate in the same direction as before maintenance.
  get heated and damaged.
  not start at all.

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