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Single Phase Motors

Single Phase Motors
In a capacitor start motor, the phase displacement between starting and running winding can be nearly

10°
60°
30°
90°

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

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

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Single Phase Motors
Which of the following motors is used for unity power factor ?

Hysteresis motor
Universal motor
Reluctance motor
Schrage motor

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Single Phase Motors
The direction of rotation of an hysteresis motor is determined by

interchanging the supply leads
position of shaded pole with respect to main pole
retentivity of the rotor material
none of these

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Single Phase Motors
When a universal motor is operated on no load, its speed is limited by

Weight of the armature
Supply voltage frequency
Windage and friction
Armature reaction

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Single Phase Motors
In a shaded pole motor the rotating magnetic field is produced by using

Shading coils
Salient poles
Copper windings
A capacitor

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