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Single Phase Motors

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

1200 rpm
1425 rpm
None of the listed here
1500 rpm

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

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

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Single Phase Motors
The capacitor start, capacitor run motor is used in thode applications where _____

None of the listed here
High starting torque is required
Silence is important
Noisy operation is not important

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Single Phase Motors
Torque developed by a single phase induction motor at starting is

None of the listed here
Pulsating
Uniform
Nil

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Single Phase Motors
Which of the following statements regarding single-phase induction motoris correct ?

It is self-starting
It requires only one winding
It can rotate in one direction only
It is not self-starting

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Single Phase Motors
For ceiling fans generally the single phase motor used is

Capacitor start type
Permanent capacitor type
Capacitor start and run type
Split phase type

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