Which of the following is a common sign of an overloaded rigging system?

An overloaded rigging system often leads to visible physical stress on the equipment, one of the most prominent signs being bending or deformation. When the load exceeds the designed capacity of the rigging components such as slings, hooks, and shackles, the material may not only bend but can potentially become permanently deformed or even fail. This deformation indicates that the stresses on the equipment are beyond safe limits, posing a significant safety risk during lifting operations.

The other options do not provide evidence of overload. Minimal tension in every sling suggests that the load might be well within safe operating limits, while indicators showing the lift within safe limits confirms compliance with safety standards. Excessive slack in the rigging can imply that there is less load than intended, which does not align with signs of overload. Therefore, recognizing signs of deformation is crucial for identifying an overloaded system and ensuring safety in rigging operations.