Electrical Machines
When excitation is increased (over excitation), the synchronous generator operates at

 unity power factor.
 any of the above.
 lagging power factor.
 leading power factor.

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Electrical Machines
For a single phase capacitor start induction motor which of the following is valid?

 None of these.
  Rotation can be changed by reversing main winding terminals.
 Direction of rotation cannot be changed.
 Rotation can be changed by interchanging supply terminals.

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