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Single Phase Motors

Single Phase Motors
If the single phase motor runs hot the probable cause cannot be

Low voltage
Shorted stator coils
High voltage
Blown fuse

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Single Phase Motors
Which motor will make least noise?

Universal motor
Shaded pole motor
Hysteresis motor
Capacitor motor

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Single Phase Motors
A 4 pole, 50 Hz single phase induction motor has a slip of 5% . The speed of the motor will be

1425 rpm
1500 rpm
1200 rpm
None of the listed here

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Single Phase Motors
A 4-pole , 50 Hz single phase induction motor is running with a slip of 3.4%. The speed of the motor is

1449 rpm
1540 rpm
1279 rpm
1120 rpm

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Single Phase Motors
Most of the single phase induction motor are _____ machines.

6-pole
8-pole
4-pole
2-pole

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Single Phase Motors
Most of the fractional horsepower motors have either

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

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MORE MCQ ON Single Phase Motors

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