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Single Phase Motors

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

Reluctance
Universal
Hysteresis
Shaded pole

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Single Phase Motors
In split phase motor main winding is of

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

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Single Phase Motors
Most of the fractional horsepower motors have either

plain or sleeve bearings
hard and annealed bearings
soft and porous bearings
ball or roller bearings

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Single Phase Motors
In a capacitor start, capacitor-run motor, _______ winding is cut out after starting.

Neither starting nor main
Starting
Main
None of the listed here

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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
If the capacitor of a single-phase motor is short-circuited

the motor will not start
the motor will run in reverse direction
the motor will run in the same direction at reduced r.p.m.
the motor will run

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