The extinguishing agent is expelled through the _____ of a fire extinguisher.

The extinguishing agent is expelled through the _____ of a fire extinguisher.

• A. Horn
• B. Nozzle
• C. Valve
• D. Handle

Answer: (A)

Extinguishing agent exits through the discharge outlet, and on many extinguishers—especially CO2 models—that outlet is a horn. The horn is the specialized end piece that shapes and directs the jet for effective control at close range. It also helps protect the operator from the cold gas produced by CO2 as it expands. The valve and handle are simply the controls that release the agent, and while a nozzle is a general term for the exit, many extinguishers use a horn as the actual discharge point. So the horn is the best answer because it identifies the actual exit component used to expel the agent.

Extinguishing agent exits through the discharge outlet, and on many extinguishers—especially CO2 models—that outlet is a horn. The horn is the specialized end piece that shapes and directs the jet for effective control at close range. It also helps protect the operator from the cold gas produced by CO2 as it expands. The valve and handle are simply the controls that release the agent, and while a nozzle is a general term for the exit, many extinguishers use a horn as the actual discharge point. So the horn is the best answer because it identifies the actual exit component used to expel the agent.