Answer :
Final answer:
The correct answer for the materials used in webbing for lifelines, lanyards, and harnesses is that they must be made of synthetic fibers. These materials are preferred due to their strength and resistance to environmental factors. Natural fibers, while useful in other contexts, do not provide the same level of durability for safety applications.
Explanation:
Webbing for Lifelines, Lanyards, and Harnesses
When it comes to safety gear like lifelines, lanyards, and harnesses, the materials used in their construction are crucial for ensuring durability and safety. The appropriate choice of fibers for webbing in these applications is synthetic fibers. This is because synthetic materials, such as nylon and polyester, provide greater strength, resistance to abrasion, and weather endurance compared to natural fibers like cotton or hemp.
Synthetic webbing is less likely to degrade in harsh environmental conditions, making it the preferred choice for safety equipment. In contrast, natural fibers can absorb moisture, lose strength when wet, and deteriorate faster over time. As for glow-in-the-dark options, while they may be visually appealing for visibility in dark conditions, they do not inherently provide the necessary strength or durability required for lifeline and harness applications.
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