Repulsion Motor Multiple Choice Questions and Answers
26. The purpose of stator winding in the compensated repulsion motor is to
A.Provide mechanical balance
B.Improve power factor and provide better speed regulation
C.Prevent hunting in the motor
D.Eliminate armature reaction
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B.Improve power factor and provide better speed regulation
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27. In repulsion motor, zero torque is developed when
A.Brush axis is 450 electrical to field axis
B.Brush axis coincides with the field axis
C.Brush axis is 900 electrical to field axis
D.Both (b) and (c)
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28. A repulsion motor is equipped with
A.Slip rings
B.Commutator
C.Both (a) and (b)
D.None of the above
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29. A repulsion-start induction-run single-phase motor runs as induction motor only when
A.Short-circuiter is disconnected
B.Stator winding is reversed
C.Brushes are shifted to neutral plane
D.Commutator segments are short-circuited
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30. In a repulsion motor, brushes are connected
A.To starting winding
B.To the external supply
C.To stator winding
D.Together by a jumper wire
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