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Single Phase Motors

Single Phase Motors
A 2 HP dc series motor will weigh ______2 HP single phase series motor.

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

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Single Phase Motors
The direction of rotation of universal motor can be reversed the by reversing the flow of current through

Either armature winding or field winding
Field winding
Armature winding
None of these

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Single Phase Motors
In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will

Become unstable
Run as induction motor
Draw excessive armature current and may burn out
Fall out of synchronism and come to stand still

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Single Phase Motors
A shaded pole motor can be used for

Any of the listed here
Hair dryers
Circulators
Toys

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Single Phase Motors
In repulsion motor direction of rotation of motor

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

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Single Phase Motors
The capacitor start, capacitor run motor has _______

Low efficiency
Noisy operation
No centrifugal switch
Low power factor

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