Minnesota Journeyman Sprinkler Fitter Practice Exam

In vertical piping installations, the maximum length between hangers is typically set at 10 feet to ensure proper support and stability. This requirement minimizes the risk of sagging or bowing in the pipes, which can lead to stress points and potential damage over time due to dynamic loads, thermal expansion, and other factors affecting the integrity of the piping system. Adequate support is crucial not only for maintaining the operational efficiency of the system but also for preventing leaks and ensuring safety.

Maintaining a 10-foot distance between hangers aligns with industry standards and codes, facilitating proper installation practices. It provides sufficient support while allowing some flexibility within the system. The distances outlined in the other choices, while they may seem viable for certain scenarios, exceed the recommended standards for safe vertical piping installations and could compromise the structural integrity of the piping system over time.