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Single Phase Motors

Single Phase Motors
In a capacitor start motor, the phase displacement between starting and running winding can be nearly

30°
90°
60°
10°

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Single Phase Motors
In case of a shaded pole motor the direction of rotation of the motor is

from shaded pole to main pole
either of the above depending on power factor
either of the above depending on voltage
from main pole to shaded pole

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Single Phase Motors
Which motor is normally free from mechanical and magnetic vibrations?

Split phase motor
Universal motor
Hysteresis motor
Shaded pole motor

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Single Phase Motors
The wattage rating for a ceiling fan motor will be in the range

10 to 20 W
200 to 250 W
250 to 500 W
50 to 150 W

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Single Phase Motors
Locked rotor current of a shaded pole motor is

less than full load current
equal to full load current
slightly more than full load current
several times the full load current

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Single Phase Motors
For ceiling fans generally the single phase motor used is

Split phase type
Capacitor start type
Capacitor start and run type
Permanent capacitor type

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MORE MCQ ON Single Phase Motors

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