What is the term for keeping a ladder from slipping by applying one's weight to the underside of it?

The correct term for keeping a ladder from slipping by applying one's weight to the underside of it is "heeling." This technique is vital for maintaining stability and safety while using a ladder in firefighting or rescue operations. By applying weight to the base of the ladder, typically at the lower rung or rail, the firefighter helps to increase the ladder's friction with the ground, which significantly reduces the potential for slipping.

Heeling is especially important when the ladder is extended or at an angle, as this is when it is most susceptible to falling over or sliding. The weight provides an additional anchor point, ensuring that the ladder can support the firefighter’s weight and any additional loads they may need to handle, such as equipment or a victim during a rescue.

Understanding this concept is crucial for anyone working with ladders in emergency situations, as proper techniques can prevent accidents and injuries, enhancing the overall effectiveness and safety of firefighting operations.