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Single Phase Motors

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

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

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Single Phase Motors
The purpose of starting winding in a single phase induction motor is to _____

Reduce losses
None of the listed here
Produce rotating flux in conjunction with main winding
Limit temperature rise of the machine

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

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

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Single Phase Motors
The motor used for the compressors is

capacitor-start capacitor-run motor
c. series motor
shaded pole motor
reluctance motor

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Single Phase Motors
The electric motor used in portable drills is

Universal motor
Repulsion motor
Hysteresis motor
Capacitor run motor

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Single Phase Motors
The capacitor used in capacitor start motor is always a _______ capacitor.

Ceramic
Mica
Paper
Electrolyte

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