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Single Phase Motors

Single Phase Motors
A shaded pole motor does not possess

commutator
centrifugal switch
all of these
capacitor

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

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

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Single Phase Motors
Which of the following motor can be used for unity power factor?

Shaded pole motor
Scharge motor
Capacitor run motor
Hysteresis motor

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

Shaded pole motor
Hysteresis motor
Split phase motor
Universal motor

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Single Phase Motors
The repulsion start induction run motor is used because of

good power factor
high efficiency
high starting torque
minimum cost

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Single Phase Motors
Electrical faults in a motor occur must commonly in its

Commutator
Brushes
Motor winding
Control equipment

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