What is the purpose of the hoist's limit switches?

The purpose of limit switches on a hoist is to prevent over-travel and protect the hoisting equipment from potential damage. These switches are designed to automatically stop the hoist operation when the load reaches a predetermined height or limit, ensuring that the hoist does not exceed its safe operating range. This feature is crucial for maintaining safe work conditions and prolonging the service life of the hoisting equipment by avoiding mechanical failure that could occur due to excessive travel or strain. In a practical setting, this function helps operators avoid dangerous situations and enhances safety protocols by reducing the risk of accidents caused by operator error or equipment malfunction. The other options provided do not accurately capture the primary role of limit switches, which is specifically focused on safety and operational integrity.