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← ScienceWhich outcome occurs when a refrigeration system undergoes rapid cycling?
A)Premature compressor motor winding breakdown✓
B)Increased expansion valve superheat margin
C)Decreased evaporator coil frost accumulation
D)Higher sustained coefficient of performance
💡 Explanation
Rapid cycling stresses the compressor motor windings because frequent starts/stops trigger thermal fatigue; therefore, winding insulation breakdown leads to motor failure rather than improved superheat, reduced frost, or higher coefficient of performance, all of which are affected by steady-state operation.
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