When two outlets are not available during work, how many miners may be employed at one time?

The appropriate answer is that no more than 20 miners may be employed at one time when two outlets are not available during work. This regulation is set to ensure safety in mining operations. When only one escape route is available, limiting the number of miners on site is crucial to facilitate safe evacuation in the event of an emergency.

This specific limit helps to minimize risks associated with overcrowding in areas that might be hazardous without a second means of escape. It reflects the broader safety protocols established in the mining industry, which emphasize the balance between operational efficiency and the health and safety of workers.

Understanding these limits is essential for mine foremen and workers, as compliance with safety regulations not only protects individuals but also promotes a culture of safety within the mining operation.