🔍 Key Concepts

• Fire triangle (fuel, heat, oxygen) and which element you can safely remove first • Engine-room fire priorities: stop the source of fuel before attacking the flames • Differences between extinguishing, containment, and fuel isolation

💭 Think About

• Which action directly stops more fuel from feeding the fire? • Which option, if done first, could actually make the situation worse by spreading fire, smoke, or fuel? • In a machinery-space fire, what must you control before using fixed or portable extinguishing systems?

✅ Before You Answer

• Identify which choice removes the source of fuel rather than only treating the visible flames • Consider the risk of leaving the fuel system pressurized while you try other actions • Ask whether closing up (battening down) or starting pumps could increase pressure, spread fuel, or delay fuel isolation