What should be activated in the event of a fire inside the paint locker?

When addressing a fire in a paint locker, the correct action is to activate the CO2 system. This is because CO2 (carbon dioxide) is an effective fire suppression agent, particularly in enclosed spaces like a paint locker, where flammable materials are stored.

The CO2 system works by displacing oxygen in the area, which is essential for combustion, and therefore, it can quickly extinguish the fire without causing damage to equipment or leaving harmful residues, making it suitable for environments with sensitive materials.

In contrast, while activating a fire extinguisher might seem like a reasonable choice, it typically requires direct access to the flames and may not be as effective in confined spaces filled with flammable vapors. A fire alarm is crucial for alerting others in the building to evacuate but does not directly address the fire itself. The emergency exit is essential for ensuring personnel safety but does not contribute to extinguishing the fire. Thus, in a situation where immediate suppression of the fire is necessary, activating the CO2 system stands out as the most effective response.