How frequently should attendants maintain contact with entrants in confined spaces?

Attendants should maintain constant communication with entrants in confined spaces to ensure safety and respond to any emergency situations rapidly. This consistent contact allows attendants to monitor the conditions within the space, such as changes in air quality or the presence of hazardous materials. It also enables them to notice any signs of distress or the need for assistance from the entrants, thereby facilitating immediate action if required.

Continuous communication is crucial in confined space operations because conditions can change quickly, and any delay in responding to a problem could result in severe consequences. This approach aligns with safety regulations and best practices, emphasizing the importance of regular checks and prompt intervention to safeguard the health and safety of workers involved in confined space activities. Other options suggesting less frequent contact could lead to a dangerous situation, as issues might go unrecognized or unaddressed for too long.