Answer:
One operating advantage of fixed restriction metering devices over expansion valves is simplicity and reliability in design.
Step-by-step explanation:
Fixed restriction metering devices, such as capillary tubes or orifice plates, have a simpler design compared to expansion valves. This simplicity contributes to increased reliability in operation. Fixed restrictions do not have moving parts or complex mechanisms that can wear out or malfunction, leading to a more robust and durable system. Additionally, the straightforward design of fixed restriction devices makes them easier to install and maintain, reducing the likelihood of operational issues and simplifying troubleshooting processes.
This advantage is particularly significant in applications where reliability and ease of maintenance are critical factors.