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Single Phase Motors

Single Phase Motors
A motor gets overheated due to

Overloads
Dry bearings
Worn bearings
All of the listed here

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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?

Shaded pole
Reluctance
Universal
Hysteresis

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Single Phase Motors
Most of the troubles of single phase induction motors are traceable to the _______

Rotor bars
Starting switch
Main winding
Shaft bearings

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

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

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Single Phase Motors
In a hysteresis motor, the rotor must have

Retentivity
Susceptibility
None of the listed here
Resistivity

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Single Phase Motors
Capacitor motors _______resistance split phase induction motors.

Are costlier than
Are less costly than
Cost about the same as
Poor starting torque than

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