What safety equipment is necessary during fueling operations?

During fueling operations, the necessary safety equipment includes chocks, a grounding strap, a fire bottle, and a watch.

Chocks are essential for preventing the aircraft from moving while it is being fueled, ensuring stability and safety during the process. A grounding strap is critical in preventing static electricity buildup, which can pose a fire hazard due to the flammable nature of aviation fuel. The fire bottle is a vital piece of safety equipment, as it provides immediate access to fire suppression should a fire break out during fueling. Lastly, having a watch is important for monitoring the fuel operation closely and maintaining constant vigilance for any potential hazards, allowing for quick action if necessary.

While other options may include items that are useful in various contexts, they do not encompass the specific safety requirements mandated during fueling operations, which prioritize preventing fire hazards and ensuring the safe handling of fuel.