Single Phase Motors
The purpose of starting winding in a single phase induction motor is to _____

Reduce losses
None of the listed here
Produce rotating flux in conjunction with main winding
Limit temperature rise of the machine

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Single Phase Motors
Which of the following statements regarding hysteresis motor is in incorrect ?

Its high starting torque is due to its high rotor hysteresis loss
It is extremely sensitive to fluctuations in supply voltage
It accelerates from rest to full-speed almost instantaneously
It is extremely quiet in operation

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

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

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