Red Seal Industrial Mechanic (Millwright) Practice Exam

How does aging affect machine components?

1. It results in more efficient performance

2. It leads to material degradation and increased failure rates

3. It makes components easier to service

4. It automatically updates technology in machinery

The correct answer is: It leads to material degradation and increased failure rates

Aging affects machine components primarily by leading to material degradation and increased failure rates. Over time, various factors such as wear and tear, environmental influences, and the material properties of the components result in a reduction in performance and reliability. Mechanical components may experience fatigue, corrosion, or wear which compromises their structural integrity and functionality. As materials age, they can become more brittle, lose their lubrication properties, or develop fatigue cracks, making them more susceptible to failure under operational conditions. This can significantly increase the likelihood of unexpected breakdowns and maintenance requirements, ultimately leading to decreased equipment efficiency and productivity. Recognizing these effects is crucial for maintenance planning and implementing a proactive approach to equipment longevity and reliability.