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Single Phase Motors

Single Phase Motors
The single phase shaded pole motor has _____

High power factor
Wound rotor
High starting torque
Squirrel cage motor

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Single Phase Motors
A universal motor operates on

Constant load and varying speed
Approximately constant speed and load
Constant speed and varying load
Synchronous speed with varying load

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

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

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Single Phase Motors
The purpose of starting winding in a single phase induction motor is to _____

Reduce losses
Produce rotating flux in conjunction with main winding
Limit temperature rise of the machine
None of the listed here

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Single Phase Motors
The resistance split phase induction motors are the most popular single phase motors because of ______

None of the listed here
Their low cost
Their high starting torque
The long starting period

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Single Phase Motors
The starting winding of a single phase induction motor has ______ that of main winding.

Same number of poles as
Less poles than
More poles than
None of the listed here

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MORE MCQ ON Single Phase Motors

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