Which is the correct sequence for using a fire extinguisher?

The correct sequence for using a fire extinguisher is to pull the pin, aim at the fire, squeeze the handle, and sweep from side to side. This method is often summarized by the acronym PASS, which stands for Pull, Aim, Squeeze, and Sweep.

Starting with pulling the pin allows you to unlock the mechanism of the fire extinguisher, which is essential for activating it. Next, aiming at the base of the fire (the most effective place to direct the extinguisher) helps to smother the flames rather than just dispersing the fire's heat and smoke. Squeezing the handle releases the extinguishing agent, and finally, sweeping from side to side is necessary to cover the area of the fire thoroughly for effective extinguishment.

The other options contain components out of order or incorrect procedures. For instance, some suggest actions that do not follow the established PASS technique, which is critical for effectively utilizing the extinguisher under stress. Remembering to aim at the base of the fire rather than the flames directly maximizes the effectiveness of the extinguisher. This method ensures the best chances of controlling and extinguishing the fire swiftly and safely.