Which of the following tasks is associated with providing manual signaling by an attendant?

The task of providing manual signaling by an attendant is directly linked to keeping unqualified workers away from hazards. This role involves ensuring that the worksite remains safe by actively communicating and signaling to unqualified individuals when they should maintain their distance from potentially dangerous situations. An attendant who provides manual signals is effectively managing the safety of the area by being vigilant and using visual or auditory signals to alert others about the dangers present, thereby preventing accidents or injuries.

While other tasks listed may involve safety components, they do not specifically pertain to the role of signaling or directing the movement of personnel in a hazardous environment. For example, performing electrical repairs focuses on technical work, monitoring equipment efficiency deals with operational tasks, and managing the electrical supply typically involves logistical oversight rather than direct safety communication. Therefore, the role of an attendant in signaling is crucial for enhancing safety protocols on-site.