Choker capacity for Synthetic Round Slings in vertical is what percent?

• A. 60%
• B. 80%
• C. 90%
• D. 100%

Answer: (B)

When a synthetic round sling is used in a choking (choker) hitch, the load is wrapped around the load and carried over a narrower contact area. This changes how the sling fibers share the load and increases stress on the sling, so its usable capacity is reduced from the vertical rating. For synthetic round slings, the derating for a choking hitch in vertical orientation is 80% of the sling’s rated capacity. So the best choice is 80%. If you’re thinking in numbers, that means a sling with a vertical WLL of 10,000 pounds would be limited to 8,000 pounds in a choke. The other options don’t fit standard derating practice: 60% would be more conservative than typical, 90% would still overstate safe capacity for this hitch, and 100% would ignore the necessary reduction.