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← ScienceWhich outcome occurs when a refrigeration loop experiences a blocked expansion valve?
A)Increased compressor wear and overheating✓
B)Refrigerant condensation in the evaporator
C)Decreased pressure stabilizes engine temperature
D)Optimal cooling cycle efficiency is maintained
💡 Explanation
Compressor overheating happens when a blocked valve restricts refrigerant flow; this is called a *latent heat bottleneck*. Backpressure rises because gas can’t pass through the expansion, therefore mechanical load increases, which risks failure, rather than normal operation due to overheating.
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