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Single Phase Motors

Single Phase Motors
The capacitor start, capacitor run motor has _______

No centrifugal switch
Low efficiency
Low power factor
Noisy operation

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Single Phase Motors
Which of the following motors has highest starting torque ?

Capacitor-start motor
Shaped pole motor
Split-phase motor
Repulsion motor

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Single Phase Motors
In split phase motor main winding is of

thick wire placed at the top of the? slots
thin wire placed at the top of the slots
thick wire placed at the bottom of the slots
thin wire placed at the bottom of the slots

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

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

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Single Phase Motors
The speed control of universal motor used for sewing machines is by

Tapping the field
Varying the resistance
Centrifugal mechanism
Friction

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Single Phase Motors
Which of the following single phase motor is available with speed as low as one revolution per month?

Hysteresis
Reluctance
Universal
Shaded pole

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MORE MCQ ON Single Phase Motors

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