If a refrigeration system, equipped with a reciprocating compressor, has a liquid-line solenoid valve that is leaking during the 'off' cycle, what would this cause?

Correct Answer: Option D — noisy compressor operation upon starting

A leaking liquid-line solenoid during the off-cycle allows refrigerant to slowly bleed into the evaporator. This liquid accumulates and flashes, causing severe hydraulic shock and noisy mechanical slugging upon the next compressor startup.