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Single Phase Motors

Single Phase Motors
For the same rating, a dc series motor costs ______single phase series motor.

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

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Single Phase Motors
Burning out of winding is due to

capacitor value hiving changed
open circuiting of capacitor
None of these
short circuited capacitor

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Single Phase Motors
Locked rotor current of a shaded pole motor is

several times the full load current
less than full load current
slightly more than full load current
equal to full load current

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Single Phase Motors
The full load efficiency of a shaded pole motor is about _______

70 to 80%
30 to 35%
60 to 70%
5 to 10%

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

Control equipment
Motor winding
Commutator
Brushes

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Single Phase Motors
The resistance split phase induction motor has ______ starting torque .

None of the listed here
Very low
High
Moderate

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