During load movement, side loading is permitted only with which condition?

• A. Freely suspended load
• B. A load on a sling
• C. A load on a chain
• D. A load on a hook block

Answer: (A)

Side loading means a sideways force on the crane or hook that happens when the load isn’t hanging straight down from the hook. This risk is minimized when the load is freely suspended, with nothing gripping or resting against the hook or other lifting hardware. When the load is held by a sling, chain, or a hook block, the geometry or contact between components can create horizontal forces as the load moves, producing side loading that can push the crane off vertical and stress the rigging. So, side loading during movement is permitted only when the load is freely suspended, ensuring the load’s weight acts vertically through the hook without lateral components.