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Single Phase Motors

Single Phase Motors
In a hysteresis motor, the rotor must have

Retentivity
Resistivity
Susceptibility
None of the listed here

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Single Phase Motors
In split phase motor main winding is of

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

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Single Phase Motors
In repulsion motor, maximum torque is developed when

None of these
brush axis is at 45° electrical to the field axis
brush axis coincides with the field axis
brush axis is at 90° electrical to the field axis

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Single Phase Motors
A Reluctance motor

Need no dc excitation
Is constant speed motor
Is self starting
All of the listed here

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Single Phase Motors
A motor gets overheated due to

All of the listed here
Overloads
Worn bearings
Dry bearings

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

high starting torque
good power factor
high efficiency
minimum cost

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MORE MCQ ON Single Phase Motors

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