The critical point of loading for double braided nylon rope is reached when it's stretched over

• A. 10 percent of its length
• B. 25 percent of its length
• C. 50 percent of its length
• D. 75 percent of its length

Answer: (B)

The important idea here is how nylon rope stretches under load. Nylon is highly elastic, and as you apply tension, the rope lengthens. For double braided nylon rope, the point at which it has stretched to about one-quarter of its original length marks the limit where it can safely absorb additional shock without losing its ability to handle load effectively. Beyond this elongation, the rope’s performance diminishes and the risk of sudden over-stretch, reduced control, or failure increases. So, reaching about 25 percent elongation is the practical “critical point of loading” to watch for in this material.