Which of the following is a common safety measure when handling fuel?

Ensuring proper ventilation is a crucial safety measure when handling fuel because it helps to disperse any potentially harmful vapors or fumes that may be released during the handling process. Proper ventilation reduces the risk of accumulation of flammable gases, which can lead to fire or explosion hazards. In enclosed spaces, such as fuel storage areas or transfer zones, maintaining adequate airflow is essential to ensure that any vapors are quickly removed and do not reach explosive concentrations.

By contrast, some options suggest unsafe practices. Wearing sandals and shorts does not provide the necessary protection from spills or splashes, which can be dangerous when handling flammable liquids. Using open flames for lighting around fuel is extremely risky, as it can ignite vapors and create a fire hazard. Ignoring signs of leaks puts oneself and others at risk of exposure to hazardous materials and potential accidents, as leaks can lead to environmental contamination and fire hazards. Therefore, ensuring proper ventilation stands out as a fundamental practice in maintaining safety when dealing with fuel.