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Single Phase Motors

Single Phase Motors
Electrical faults in a motor occur must commonly in its

Motor winding
Commutator
Brushes
Control equipment

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Single Phase Motors
In a shaded pole motor, the direction of rotation is from

Shaded pole to main pole
None of the listed here
Main poles to shaded pole
Depends on supply line polarity

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Single Phase Motors
In repulsion motor direction of rotation of motor

is opposite to that of brush shift
is independent of brush shift
is the same as that of brush shift

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Single Phase Motors
Capacitor motors _______resistance split phase induction motors.

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

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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
Armature reaction
Supply voltage frequency
Windage and friction

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Single Phase Motors
A universal motor operates on

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

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MORE MCQ ON Single Phase Motors

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