Fixed CO2 fire systems are installed to protect which spaces on vessels using gasoline or other fuels with a specified flash point?

Fixed CO2 fire systems are installed to protect which spaces on vessels using gasoline or other fuels with a specified flash point?

• A. Enclosed machinery and fuel tank spaces
• B. Engine rooms and auxiliary spaces
• C. Cargo holds and engine rooms
• D. Crew quarters and deck spaces

Answer: (A)

Fixed CO2 fire suppression is designed for spaces that are enclosed and where displacing the air will stop the flame. On vessels carrying gasoline or other fuels with a specified flash point, the most at-risk spaces are those that can contain fuel vapors and are sealed enough for a flooding agent to work effectively: enclosed machinery spaces and fuel tanks. Flooding these areas with CO2 rapidly reduces the oxygen level enough to suppress the fire, without the mess or potential damage of other agents. Because CO2 is hazardous to people, these systems are placed in spaces that can be evacuated or are normally unoccupied during discharge. That's why enclosed machinery spaces and fuel tank spaces are the correct targets.

Fixed CO2 fire suppression is designed for spaces that are enclosed and where displacing the air will stop the flame. On vessels carrying gasoline or other fuels with a specified flash point, the most at-risk spaces are those that can contain fuel vapors and are sealed enough for a flooding agent to work effectively: enclosed machinery spaces and fuel tanks. Flooding these areas with CO2 rapidly reduces the oxygen level enough to suppress the fire, without the mess or potential damage of other agents. Because CO2 is hazardous to people, these systems are placed in spaces that can be evacuated or are normally unoccupied during discharge. That's why enclosed machinery spaces and fuel tank spaces are the correct targets.