True or False: Strainers trap foreign matter and provide a pocket for its accumulation.

Strainers are devices used in piping systems to remove unwanted debris and foreign matter from fluids, ensuring that these contaminants do not damage pumps, valves, and other components downstream. The correct statement illustrates that strainers indeed serve a dual purpose: they not only trap foreign materials but also provide a space—often referred to as a pocket or basket—for that material to accumulate. This design is crucial for maintaining system efficiency and preventing potential system failures caused by blockages or wear.

In a properly designed strainer, once the foreign matter accumulates, it can be removed periodically, which helps sustain optimal flow and system functionality. This maintenance is essential for the long-term durability of the piping system. The other options either limit the applicability of strainers to specific conditions or incorrectly suggest that strainers might not function as intended in different scenarios, which is not the case. Therefore, the true statement reflects the fundamental role of strainers in fluid dynamics and system maintenance.