The safe use of slings largely depends on four important factors. Which set is correct?

• A. Size, Length, Material, Temperature
• B. Size, Hitch, Angle, Sharpness
• C. Weight, Length, Material, Flexibility
• D. Size, Angle, Length, Load

Answer: (B)

When using slings safely, you focus on four practical factors that directly affect how the sling shares the load and how it wears. The size of the sling matters because a larger, thicker sling generally has a higher strength rating and resists bending or fraying under load, so you’re matching the sling’s capacity to the lift. How the sling is attached to the load—the hitch—changes how the load is distributed and how the sling may slip or crush the lifting points; choosing the right hitch keeps the load stable and the sling in good condition. The angle between the sling legs under load is crucial because as that angle widens, the tension in each leg increases, which can quickly exceed the sling’s rating if not controlled. Finally, sharp edges or points on the load can cut or abrade the sling, especially if it’s a synthetic sling, so edge protection and padding are essential to prevent damage. Together, these four factors determine how safely and effectively a sling will perform in a lift.