Single Phase Motors
Which of the following statements regarding repulsion-start induction motor is incorrect ?

It is not easily reversed
It requires more maintenance of commutator and other mechanical devices
In fractional horse power motors, it has replaced the capacitor motors
It makes quite a bit of noise on starting

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Single Phase Motors
Hysteresis motor is particularly useful for high-quality record players and tape-recorders because

it revolves synchronously
it can be easily manufactured in extremely small sizes of up to 1 W output
it develops hysteresis torque which is extremely steady both in amplitude and phase
it is not subject to any magnetic or mechanical vibrations

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