Choker hitch rating depends on choke angle and is typically what percent?

Choker hitch rating depends on choke angle and is typically what percent?

• A. 50%
• B. 75%
• C. 85%
• D. 95%

Answer: (B)

Choker hitch capacity is reduced by the choke angle because the load path changes when the rope or strap tightens around the load. As the choke angle increases, the effective lifting capacity drops due to how the force is distributed and how friction and bending affect the sling around the load. In practical rigging practice, a conservative rule of thumb is to derate the sling’s nominal capacity to about 75% when using a choker hitch. This 75% reflects the typical loss in capacity due to the wrap and angle, providing a safe, commonly used working limit for planning lifts.

Choker hitch capacity is reduced by the choke angle because the load path changes when the rope or strap tightens around the load. As the choke angle increases, the effective lifting capacity drops due to how the force is distributed and how friction and bending affect the sling around the load. In practical rigging practice, a conservative rule of thumb is to derate the sling’s nominal capacity to about 75% when using a choker hitch. This 75% reflects the typical loss in capacity due to the wrap and angle, providing a safe, commonly used working limit for planning lifts.