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Single Phase Motors

Single Phase Motors
A shaded pole does not posses

All of the listed here
Commutator
Centrifugal switch
Capacitor

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Single Phase Motors
Which of the following is most economical method of starting a single phase induction motor?

Inductance start method
Resistance start method
Split phase method
Capacitor start method

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Single Phase Motors
The single phase shaded pole motor has _____

High power factor
Squirrel cage motor
Wound rotor
High starting torque

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Single Phase Motors
A 50 Hz, 4- pole single phase induction motor will have a synchronous speed of ______

750 rpm
1500 rpm
1200 rpm
None of the listed here

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

Shaded pole to main pole
Depends on supply line polarity
None of the listed here
Main poles to shaded pole

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Single Phase Motors
Capacitor motors _______resistance split phase induction motors.

Are less costly than
Poor starting torque than
Cost about the same as
Are costlier than

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