Final answer:
The acronym PASS represents the steps for using a fire extinguisher: Pull the pin, Aim at the base of the fire, Squeeze the lever, and Swing the nozzle side to side.
Step-by-step explanation:
The acronym PASS is often used as a mnemonic device to remember the steps for using a fire extinguisher effectively. It stands for:
- Pull the pin to unlock the operating lever.
- Aim the nozzle at the base of the fire.
- Squeeze the lever slowly to discharge the extinguishing agent.
- Swing the nozzle from side to side to cover the fire area with the extinguishing agent.
Remembering to Stop and Think during an emergency can be crucial, as it aligns with the first step, 'Pull', which requires one to stop and assess the situation before acting. The guiding principles behind the acronym are designed to be easy to recall under pressure, thereby increasing safety and efficacy in extinguishing a fire.