Red Seal Industrial Mechanic (Millwright) Practice Exam

The identification of worn gears is crucial for maintaining the efficiency and reliability of machinery. Increased noise, rough operation, and visible signs of wear or scoring are primary indicators of gear wear. When gears are in good condition, they operate smoothly and quietly. However, as they begin to wear, friction increases, resulting in a noisier operation as the teeth struggle to mesh properly. This can lead to a rough or jerky movement, as the gear engagement changes, making the mechanism less efficient and potentially leading to further mechanical issues. Visible signs of wear or scoring on the gear teeth indicate physical damage or degradation, which can occur from prolonged use, inadequate lubrication, or misalignment. This physical evidence is a critical part of diagnosing the gear's condition. Monitoring these signs allows for timely maintenance or replacement, preventing more significant failures from occurring. In contrast, reduced power consumption or improved efficiency would not indicate worn gears. Instead, these are often signs of healthy operation. Consistent temperature readings, while important in assessing operational state, do not directly reflect gear wear, as temperature can remain stable across various gear conditions if other parameters are managed properly.