1. Within a vapour compression refrigeration system, which component performs a role most like that of a boiler feedwater regulating valve?
- A. The compressor on the suction side
- B. The condenser water regulating valve
- C. The expansion (metering) valve
- D. The suction line strainer screen
Show the answer and explanation
Answer: C. Just as a feedwater valve meters water into a boiler, the expansion (metering) valve meters liquid refrigerant into the evaporator while dropping its pressure. This makes it the closest functional analogue to a boiler feedwater regulating valve.