What does "dead end" mean in a piping system context?

In the context of a piping system, "dead end" refers to a section of pipe that does not have an outlet or connection. This means that the fluid flowing through the pipe has nowhere to escape or continue beyond that section. This can be important in various applications, such as preventing leaks, maintaining pressure, or storing fluids within a system.

In contrast, the other options describe different configurations or characteristics of piping systems. A section of pipe with multiple outlets suggests a design meant for distribution, while a section that allows fluid flow in both directions indicates that it is designed for bidirectional flow, which is fundamentally different from having a dead end. Lastly, a section of pipe exposed to extreme pressure may refer to the conditions the pipe must withstand, rather than its design or connectivity in the system. Understanding these distinctions helps in proper system design and troubleshooting in pipefitting applications.