In the event of a fire on-site, what is the first action workers should take?

In the event of a fire on-site, the priority should be the safety of all employees and personnel. Evacuating immediately is the most crucial first action because it ensures that everyone can leave the potentially hazardous environment as quickly and safely as possible. This action minimizes the risk of injury or fatalities as the fire may escalate quickly.

While other actions, such as attempting to extinguish the fire or calling for help, might be important steps later on, they should only be undertaken if conditions allow for it safely and without risking personal safety. Sounding the alarm is also essential to alert others, but the immediate evacuation is a proactive measure to safeguard lives first. Therefore, evacuating immediately is correct because it prioritizes human safety above all else during a fire emergency.