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Single Phase Motors

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

Very low
Moderate
High
None of the listed here

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

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

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Single Phase Motors
A resistance split phase induction motor is used for ______

Low inertia loads
None of the listed here
Very high inertia loads
High inertia loads

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Single Phase Motors
Centrifugal switch disconnects the auxiliary winding of the motor at about ____ percent of synchronous speed

80 to 90
100
70 to 80
30 to 40

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Single Phase Motors
If the single phase motor runs hot the probable cause cannot be

Low voltage
High voltage
Shorted stator coils
Blown fuse

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

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

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