Electrical Machines
Swinburne's test is applicable to

 DC shunt and level Compound motor.
 DC Shunt motor.
 DC compound motor.
 DC series motor.

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Electrical Machines
In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased

 power angle decrease and power factor increase
 both power angle and power factor decrease
 power angle increase and power factor decrease
 both power angle and power factor increase

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Electrical Machines
In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting

  negative sequence currents are generated.
  the damper bars develop induction generator torque.
  the damper bars develop synchronous motor torque.
  the damper bars develop induction motor torque.

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