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Which outcome occurs inside a refrigerator's capillary tube if it develops a partial restriction to refrigerant flow?

A)Decreased evaporator superheat, flooding the compressor
B)Increased condenser subcooling, raising energy efficiency
C)Elevated evaporator pressure, causing icing issues
D)Reduced evaporator capacity, limiting heat absorption

💡 Explanation

When the capillary tube is restricted, the expansion process is inhibited because less refrigerant reaches the evaporator, limiting its ability to absorb heat. Therefore, reduced evaporator capacity results, rather than altered superheat/subcooling or evaporator pressure issues which manifest under different conditions.

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