Which term describes the sections of the piping system that serve a room or group of rooms on the same story of the facility?

The term that accurately describes the sections of the piping system that serve a room or group of rooms on the same story of a facility is branch lines. These lines are specifically designed to take the medical gas from the main supply and distribute it to various points within the facility, such as patient rooms, operating rooms, or other designated areas.

Branch lines typically connect to the main lines and are responsible for delivering the gases to where they are needed most, ensuring each area has access to the required medical gases. Understanding the function and placement of branch lines is crucial in the design and maintenance of an efficient medical gas delivery system, as they directly impact the availability and safety of medical gases in healthcare settings.

In contrast, main lines serve as the primary source of supply for the entire gas system and run throughout the building, while service pipes and distribution lines are terms that might refer to more general concepts of plumbing or may not specifically denote the function of serving particular rooms in a medical gas context.