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Single Phase Motors

Single Phase Motors
A capacitor selected for capacitor run motor should be rated for

Peak voltage
Rms voltage
None of the listed here
Average voltage

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Single Phase Motors
The motor used on small lathes is usually

3-phase synchronous motor
Single phase capacitor run motor
Dc shunt motor
Universal motor

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

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

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Single Phase Motors
For the same rating, a dc series motor costs ______single phase series motor.

Less than
More than
About the same
None of the listed here

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

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

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Single Phase Motors
Which of the following is most economical method of starting a single phase induction motor?

Split phase method
Capacitor start method
Resistance start method
Inductance start method

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