🔍 Key Concepts

• Class B fires involving flammable liquids such as aviation fuel • Characteristics and best uses of CO₂, dry chemical, foam, and water in firefighting • Typical helicopter deck / aviation fuel fire procedures on offshore units (MODUs)

💭 Think About

• Which agent is specifically designed to create a blanket over burning fuel and prevent vapors from igniting? • For a large aviation fuel spill fire, which agent would be most effective at both extinguishing flames and preventing re-ignition, not just knocking down visible fire? • Which of these agents could spread fuel or provide inadequate cooling or vapor suppression on a helicopter crash fire?

✅ Before You Answer

• Identify which choice is best for flammable liquid pool fires (fuel on a deck) rather than electrical or confined-space fires. • Consider which agents are commonly specified for helideck firefighting systems on offshore installations. • Eliminate any agents that might spread liquid fuel or lack vapor suppression for spilled aviation fuel.