Fixed CO2 fire systems shall be installed to protect enclosed machinery and fuel tank spaces of all vessels using gasoline or other fuel having a flash point of what degree?

Fixed CO2 fire systems shall be installed to protect enclosed machinery and fuel tank spaces of all vessels using gasoline or other fuel having a flash point of what degree?

• A. 100 degrees
• B. 90 degrees
• C. 110 degrees
• D. 120 degrees

Answer: (C)

The requirement hinges on the flash point of the fuel. If a vessel uses gasoline or any fuel with a flash point at or below 110°F, a fixed CO2 fire suppression system must be installed to protect enclosed machinery spaces and fuel tank spaces. This threshold matters because fuels with low flash points can emit flammable vapors that ignite more easily in confined spaces, where vapors can accumulate and ventilation is limited. A fixed CO2 system floods the space, displacing oxygen and rapidly suppressing a fire, which is why it’s required in these enclosed areas. Gasoline has a very low flash point (well below 110°F), so it triggers the requirement. Fuels with higher flash points, such as diesel, are not covered by this specific rule. The number 110 refers to degrees Fahrenheit, which is the standard used in these regulations.

The requirement hinges on the flash point of the fuel. If a vessel uses gasoline or any fuel with a flash point at or below 110°F, a fixed CO2 fire suppression system must be installed to protect enclosed machinery spaces and fuel tank spaces. This threshold matters because fuels with low flash points can emit flammable vapors that ignite more easily in confined spaces, where vapors can accumulate and ventilation is limited. A fixed CO2 system floods the space, displacing oxygen and rapidly suppressing a fire, which is why it’s required in these enclosed areas.

Gasoline has a very low flash point (well below 110°F), so it triggers the requirement. Fuels with higher flash points, such as diesel, are not covered by this specific rule. The number 110 refers to degrees Fahrenheit, which is the standard used in these regulations.