Are additional cache storages required outside the working section?

The necessity for additional cache storages outside the working section is critical for ensuring efficiency and safety in operations. The correct answer indicates that cache storages should be accessible at intervals no longer than 30 minutes of travel time. This approach enhances operational effectiveness by allowing workers to access supplies and equipment conveniently, minimizing downtime during work shifts.

Frequent access to additional caches can help in quickly addressing any equipment needs or tools required without significant disruptions. It is especially important in large or complex mining operations where the working face may be far from central storages, thus impacting travel time and operational flow. By maintaining these caches within a 30-minute travel interval, the workflow remains uninterrupted, enabling a continuous and safe work environment.

The other options don't address the operational efficiency needed in a mining context. For instance, suggesting that caches are only required near the working face or that only one cache is necessary could lead to delays and increased travel times for workers, which could negatively impact productivity. Additionally, the notion of predetermined locations can be too rigid, lacking the flexibility to adapt to changing operational needs or circumstances. Therefore, the correct approach emphasizes regular intervals for cache storage to optimize both efficiency and safety in the mine's operations.