Electrical Machines
Ratio of starting torque to full load torque is minimum in

  Shunt motor.
  Cumulative compound motor.
  Series motor.
  Differential compound motor.

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Electrical Machines
In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will

  worsen and terminal voltage will fall
  worsen and terminal voltage will rise.
  improve and terminal voltage will rise .
 improve but terminal voltage will fall.

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