What should be done to mitigate static electricity during fueling?

To mitigate static electricity during fueling, implementing grounding techniques is essential. Grounding helps prevent the accumulation of static electricity by providing a safe path for electrical charges to dissipate. When fueling operations occur, there is often the potential for static electricity to build up due to the movement of fuel, which can lead to sparks that ignite flammable vapors. By grounding both the equipment and the fuel tank, you neutralize the risk of static discharge, thus enhancing safety during the operation.

The other options, while relevant to general safety practices, do not specifically address the issue of static electricity. Increasing ventilation may help disperse flammable vapors, but it does not directly mitigate static charges. Using fire-resistant equipment is essential for preventing fires in general, but it does not prevent the generation of static electricity. Masking exposed fuel sources does not eliminate the risk of static electricity and may create other hazards. Grounding techniques, therefore, are the most effective measure to specifically combat the risks associated with static electricity during fueling operations.