🔍 Key Concepts

• Basic principles of marine firefighting: life, then ship, then environment; control of fuel, oxygen, and heat (fire triangle) • Fuel tank fires: special hazards of vapors and confined spaces • Fixed CO2 systems: how and when they are used on board ships

💭 Think About

• Ask which option best reduces the IMMEDIATE danger to personnel and the ship before you try longer operations like fuel transfers • Think about what makes a fuel tank fire especially dangerous compared to a normal open-deck fire • Consider which action prepares you to use an important fixed firefighting system safely and effectively, without triggering it too soon

✅ Before You Answer

• Which step can be done quickly and safely without changing the condition of the fuel or the tank itself? • Which choice helps you control the situation without increasing vapor production or pressure in the tank? • Which option is consistent with standard procedures for using a fixed CO2 system in an enclosed space fire?