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Single Phase Motors

Single Phase Motors
The capacitor start, capacitor run induction motor acts as a true 2-phase motor at _______

All loads
No load
Starting
Full load

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Single Phase Motors
For the same rating , the single phase induction motor is _______ that of 3-phase induction motor.

More than
The same as
Less than
None of the listed here

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

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

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Single Phase Motors
The single phase shaded pole motor has _____

Squirrel cage motor
Wound rotor
High starting torque
High power factor

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Single Phase Motors
If a single phase induction motor runs slower than normal, the most likely defect is

short-circuit in the winding
None of these
worn bearings
open-circuit in the winding

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

Salient poles
A capacitor
Copper windings
Shading coils

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MORE MCQ ON Single Phase Motors

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