If a single phase induction motor runs slower than normal, the most likely defect is_____________?
Correct answer: A. worn bearings
- A. worn bearings
- B. short-circuit in the winding
- C. open-circuit in the winding
- D. none of the above
Explanation
Worn bearings increase friction and can prevent the rotor from reaching its normal speed. Winding faults usually cause failure to start, overheating, or abnormal current rather than simply a slight reduction in speed.
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