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Single Phase Motors

Single Phase Motors
The full load efficiency of a shaded pole motor is about _______

70 to 80%
60 to 70%
30 to 35%
5 to 10%

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

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

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

Low voltage
High voltage
Shorted stator coils
Blown fuse

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

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

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Single Phase Motors
The wattage rating for a ceiling fan motor will be in the range

10 to 20 W
50 to 150 W
250 to 500 W
200 to 250 W

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Single Phase Motors
For the same rating, the size of a single phase induction motor is about _______ that of the corresponding 3-phase induction motor.

3 times
The same as
1.5 times
0.33 times

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MORE MCQ ON Single Phase Motors

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