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Single Phase Motors

Single Phase Motors
A shaded pole motor can be used for

Any of the listed here
Toys
Circulators
Hair dryers

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Single Phase Motors
Which motor will make least noise?

Universal motor
Shaded pole motor
Hysteresis motor
Capacitor motor

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Single Phase Motors
In a universal motor, the most common cause of brush sparking is

open armature winding
shorted field winding?
all of these
high commutator mica

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Single Phase Motors
The speed control of universal motor used for sewing machines is by

Centrifugal mechanism
Tapping the field
Varying the resistance
Friction

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Single Phase Motors
A single phase induction motor employs ______ rotor.

Wound
Squirrel cage
Either squirrel cage or wound
None of the listed here

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Single Phase Motors
A 4-pole , 50 Hz single phase induction motor is running with a slip of 3.4%. The speed of the motor is

1449 rpm
1540 rpm
1279 rpm
1120 rpm

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MORE MCQ ON Single Phase Motors

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