Which item is NOT included in the captain's gear?

The captain's gear typically includes essential tools that facilitate communication, coordination, and situational awareness during a rescue operation. The clipboard is used for documentation and tracking tasks and personnel, while chalk or paint serves to mark locations or important information in the mine, enhancing visibility and safety. A whistle is an important communication tool, allowing the captain to signal team members effectively, especially in noisy environments or when visibility is poor.

In contrast, a fire extinguisher, while crucial for general safety in many settings, is not specifically categorized as part of the captain's immediate gear for coordination and communication during mine rescue operations. Fire extinguishers are generally part of the broader safety equipment available in the mine or carried by designated safety personnel, rather than included in the specific gear that a captain would carry during a rescue. This distinction highlights the captain's role in leading the operation rather than directly engaging with equipment intended primarily for fire suppression.