Question 65 CEL02 - Chief Engineer - Limited (Alt)

The Correct Answer is C **Why Option C is Correct:** High vibration environments are known to physically stress components and connections. Vibration can cause screws, bolts, and snap-in connectors (like data cables, power connectors, or internal bus cards) to loosen over time. Loose connections lead to intermittent failures, data corruption, or complete device outages. To mitigate this risk, increasing the frequency of **periodically checking the connections between devices and components** (e.g., reseating cards, tightening screws, ensuring cables are firmly seated) is the most critical preventative maintenance measure directly addressing the effects of high vibration. **Why Other Options Are Incorrect:** * **A) Periodically blowing out equipment enclosures with compressed air:** This is a measure primarily aimed at dust and debris accumulation, which affects cooling and insulation. While general maintenance, it is not specifically correlated with or increased in frequency due to high vibration. * **B) Periodically testing network connections with network analyzers:** This is a troubleshooting or performance monitoring activity. It identifies symptoms (like high error rates or dropped packets) but is not a preventative maintenance procedure designed to counteract the physical loosening caused by vibration. * **D) Periodically cleaning or replacing equipment enclosure air filters:** This, like option A, is related to temperature control and dust mitigation. While essential in dirty environments, it does not directly address the physical stresses and loosening of connections caused by high vibration.