ELECTRICAL MACHINES QUIZ

 Would be equal to If1/2.

 Would be equal to If1.

 Woud be equal to 2If1.

  Cannot be predicted due to insufficient data.

 4 %.

  zero.

 1.5 %.

  less than 1 %.

 θelec = θmech

 θelec = 4/P*θmech

 θelec = P/2*θmech

 θelec = 2/P*θmech

 PZL/4Sa²

 PZL/ 4Sa

 PZL/4S

 PZL/4Sp²

 less and thin

 less and thick

 large and thin

 large and thick

 eddy electric current loss.

 hysteresis loss.

 copper loss.

 vibrations.

 Direction of rotation cannot be changed.

 Rotation can be changed by interchanging supply terminals.

  Rotation can be changed by reversing main winding terminals.

 None of these.

 relative velocity between the stator and rotor mmf’s is zero.

 rotor winding is highly reactive.

  relative velocity between stator and rotor mmf’s is not zero.

 rotor is made up of salient poles.

 Cummulative compound.

  Shunt.

 Series.

 Differntical compound.

  16.67%.

 15.30%.

 14.28%.

 18.25%.