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Single Phase Motors
The wattage rating for a ceiling fan motor will be in the range
250 to 500 W
50 to 150 W
200 to 250 W
10 to 20 W
250 to 500 W
50 to 150 W
200 to 250 W
10 to 20 W
Answer
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Related Question
Single Phase Motors
Which of the following statements regarding repulsion-start induction motor is incorrect ?
It is not easily reversed
It makes quite a bit of noise on starting
In fractional horse power motors, it has replaced the capacitor motors
It requires more maintenance of commutator and other mechanical devices
It is not easily reversed
It makes quite a bit of noise on starting
In fractional horse power motors, it has replaced the capacitor motors
It requires more maintenance of commutator and other mechanical devices
Answer
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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 develops hysteresis torque which is extremely steady both in amplitude and phase
it revolves synchronously
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 develops hysteresis torque which is extremely steady both in amplitude and phase
it revolves synchronously
Answer
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Single Phase Motors
Which of the following motor can be used for unity power factor?
Scharge motor
Hysteresis motor
Shaded pole motor
Capacitor run motor
Scharge motor
Hysteresis motor
Shaded pole motor
Capacitor run motor
Answer
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Single Phase Motors
The resistance split phase induction motor has ______ starting torque .
Very low
None of the listed here
Moderate
High
Very low
None of the listed here
Moderate
High
Answer
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Single Phase Motors
The starting winding of a single phase induction motor has ______ that of main winding.
Less poles than
None of the listed here
Same number of poles as
More poles than
Less poles than
None of the listed here
Same number of poles as
More poles than
Answer
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