Name three major components of a WCFS.

• A. Wet chemical agent cylinder with discharge head and nozzles, piping network, and master valve/actuation with manual pull.
• B. Hood grease filter, electrical transformer, and smoke detector.
• C. Duct fan motor, thermostat, and carbon dioxide extinguisher.
• D. Water spray nozzle, foam concentrate tank, and manual alarm.

Answer: (A)

A wet chemical fire suppression system in a commercial kitchen revolves around three main parts that store, deliver, and release the agent. The agent cylinder with its discharge head and spray nozzles holds and disperses the wet chemical agent over the cooking area. The piping network connects the cylinder to all the nozzles so the agent reaches every protected point. The master valve/actuation with a manual pull provides the controlled release mechanism to start dispensing the agent, often with automatic actuation also integrated. These elements work together to quickly cover fats and oils, forming a soapy layer that cools and saponifies the fuel to suppress the fire. Other options mix components from different systems that aren’t part of a WCFS’s core three.