Question

What are the 3 mechanisms that portable extinguishers use to expel their contents?

Answer 1

Portable extinguishers use three mechanisms to expel their contents: expanding gas, inert gas displacement, and chemical reaction.

Step-by-step explanation:

1. Expanding gas: Portable extinguishers use compressed air that expands into the lower-pressure air of the room, causing a greater dispersal of the extinguishing agent.
2. Inert gas displacement: Some extinguishers use inert gases like carbon dioxide to displace the oxygen, smothering the fire.
3. Chemical reaction: Certain extinguishers contain chemicals that undergo a chemical reaction when released, creating substances that can effectively extinguish fires.