Pin diameter for the 10K sling set.

Pin diameter for the 10K sling set.

• A. 1 1/4 in
• B. 1 in
• C. 1 1/8 in
• D. 1 3/16 in

Answer: (C)

Pin diameter is chosen to provide the required shear strength for the rated load while fitting the hardware. For a 10K sling set, the pin is specified at 1 1/8 inches. This size gives enough cross-sectional area to resist the shear forces a 10,000-pound load will generate, so the pin doesn’t become the weak link. A smaller pin, such as 1 inch, would have less shear area and could fail under the rated load, while larger options like 1 1/4 inch or 1 3/16 inch may not fit properly or be specified for this set, so they wouldn’t increase the rated capacity. Therefore, 1 1/8 inch is the pin diameter specified for the 10K sling set.

Pin diameter is chosen to provide the required shear strength for the rated load while fitting the hardware. For a 10K sling set, the pin is specified at 1 1/8 inches. This size gives enough cross-sectional area to resist the shear forces a 10,000-pound load will generate, so the pin doesn’t become the weak link. A smaller pin, such as 1 inch, would have less shear area and could fail under the rated load, while larger options like 1 1/4 inch or 1 3/16 inch may not fit properly or be specified for this set, so they wouldn’t increase the rated capacity. Therefore, 1 1/8 inch is the pin diameter specified for the 10K sling set.