Which of the following is crucial for preventing falls while working on a ladder?

Maintaining three points of contact is essential for preventing falls while working on a ladder because it provides maximum stability and support. This practice means that at least two hands and one foot, or two feet and one hand, are in contact with the ladder at all times. It helps the worker maintain balance and reduces the likelihood of losing grip or slipping, which are common causes of falls.

This method is a key safety protocol in various work environments, ensuring that individuals can effectively secure themselves while ascending, descending, or working from the ladder. It serves as a foundational safety measure that significantly minimizes the risk of an accident during ladder work. While other safety measures, such as using a harness or selecting the right height of a ladder, are also important, the principle of maintaining three points of contact is a fundamental practice that directly impacts the worker's safety.