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 valve allows liquid refrigerant to slowly bleed past its seat and pool inside the evaporator during the off cycle. Upon restart, this trapped liquid enters the compressor cylinder, causing violent hydraulic hammering.