What provides stowage of AFFF concentrate?

• A. Service tank
• B. AFFF concentrate supply line
• C. Proportioner
• D. Sprinkler cabinet

Answer: (A)

Stowage of AFFF concentrate is provided by the service tank. This tank acts as the storage reservoir for the foam concentrate on the ship, keeping the concentrate ready and available to feed the foam system. From the service tank, concentrate flows through the concentrate supply line to the proportioner, where it is mixed with water to make the foam solution. The proportioner is the device that sets the correct mixing ratio, while the sprinkler cabinet only houses hoses and sprinklers. So the service tank is where the concentrate is stored until it’s needed.