What essential equipment must powered mobile equipment be equipped with?

For powered mobile equipment, safety and operational effectiveness are paramount. The requirement for lights, brakes, and an audible horn is essential for ensuring visibility, control, and communication in a mining environment.

Lights are critical for visibility during low-light conditions or at night, allowing operators and other personnel to clearly see and be seen by others, thereby reducing the likelihood of accidents. Brakes are fundamental for safely controlling the movement of the equipment, especially in steep or uneven terrain where stopping distances may vary. An audible horn serves as an important alerting system, notifying nearby workers of the equipment's presence and movements. This combination significantly enhances safety by providing both visibility and necessary stoppage capability while ensuring effective communication in noisy environments.

In contrast, the other options present features that, while they may contribute to comfort or additional safety measures, do not address the basic operational necessities mandated for safe operation in a surface mining context.