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← ScienceWhich consequence results when a vapor-compression refrigerator's capillary tube suffers a blockage?
A)Increased superheat at compressor suction
B)Decreased evaporator coil coldness✓
C)Higher compressor discharge temperature always
D)Elevated condenser subcooling temperature
💡 Explanation
A blockage restricts refrigerant phase transitions and flow, causing reduced evaporator pressure. Because less refrigerant evaporates, therefore the cooling capacity drops, rather than alternatives like increased superheat, which relies on superheating the existing refrigerant vapor.
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