Single Phase Motors
If a single phase induction motor runs slower than normal, the most likely defect is

short-circuit in the winding
None of these
open-circuit in the winding
worn bearings

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Single Phase Motors
Which of the following statements regarding a reluctance motor is incorrect ?

Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor
It requires no D.C. field excitation for its operation
It is nothing else but a single-phase, salient pole synchronous-induction motor
It cannot be reversed, ordinarily

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