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← TechnologyWhich outcome occurs when a centrifugal pump introduces a gas into a refrigeration system?
A)Compressor head pressure excessively increases✓
B)Metering device capacity improves notably
C)Evaporator coil defrosting cycles shorten
D)System oil separates and increases flow
💡 Explanation
Excessive head pressure results because dissolved gases are further compressed until reaching design thresholds via gas compression. Therefore pump efficiency drops, rather than improving coolant capacity because the volume of condensable refrigerant decreases more quickly.
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