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Single Phase Motors

Single Phase Motors
A motor gets overheated due to

Dry bearings
Overloads
All of the listed here
Worn bearings

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Single Phase Motors
The capacitor start, capacitor run motor has _______

Low power factor
Noisy operation
Low efficiency
No centrifugal switch

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Single Phase Motors
Which of the following applications would need the smallest size of motor?

Table fan
Electric clock
Domestic mixi
Sewing machine

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Single Phase Motors
The main winding and starting winding of a single phase induction motor are connected in _______ across the supply.

Parallel
None of the listed here
Series
Series-parallel

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

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

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

Hysteresis
Shaded pole
Reluctance
Universal

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