Electrical Machines
In case of DC shunt motor if load is reduced

 DC Shunt Motor
  The speed will remains almost constant.
 The speed will increase in proportion to reduction in load.
 The speed will increase abruptly.

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Electrical Machines
Skewing of the rotor in a 3 - Φ squirrel cage induction motor reduces

  noise, parasitic and starting torque, but increase pull out torque.
  noise and parasitic torque, but increase starting and pull-out torque.
  noise, parasitic torque, starting torque and pull out torque.
  noise and pullout torque, but increase parasitic and starting torque.

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