Certified Maintenance and Reliability Technician (CMRT) Practice Test 2025 - Free CMRT Practice Questions and Study Guide

Fluid leakage is indeed a crucial indicator of packing failures in mechanical systems, particularly in valves, pumps, and other equipment that utilizes packing to maintain a seal. Packing is the material used to seal the gap between two moving parts, and when packing begins to fail, it loses its ability to effectively contain the fluid it is meant to seal. The result is leakage, which manifests as visible fluid escaping from the confined space.

Moreover, fluid leakage can lead to various operational issues, such as reduced efficiency, increased maintenance costs, and potential safety hazards. Identifying fluid leakage early can help maintenance personnel address packing issues before they escalate into more significant problems.

In contrast, consistent flow rates, increased efficiency, and stable pressure readings generally indicate that the system is functioning as expected. These conditions suggest that the components within the system are operating effectively and maintaining the necessary seals, thus making them less likely to signal packing failures.