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← TechnologyIn a vapor-compression refrigeration cycle, which consequence occurs when the evaporator's heat load increases sharply?
A)Compressor motor overheating risk increases✓
B)Condenser pressure decreases rapidly
C)Subcooling efficiency rises beyond safety
D)Expansion valve locks shut fully
💡 Explanation
Increased evaporator load demands higher compressor work, driven by boiling refrigerant; this increases motor current and generates more heat, causing potential overheating because the motor cooling may be insufficient for surplus heat, therefore motor failure is a risk rather than simple pressure changes.
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