When using a fire extinguisher, which action should be performed after pulling the pin?

After pulling the pin, the next action that should be performed is to aim the extinguisher at the base of the fire. This is crucial because aiming at the base ensures that the extinguishing agent effectively targets the source of the fire, rather than allowing the flames to spread. The base of the fire is where the fuel source is located, and addressing it directly helps in extinguishing the fire more effectively.

The importance of this action cannot be overstated. If the extinguisher is aimed elsewhere, such as at the flames themselves, it may not effectively suppress the fire as the combustion may continue or even spread. Knowing the correct sequence of actions involved in using a fire extinguisher is critical for safety and efficacy in any emergency situation.