What is Material First Ignited?

• A. The initial material that sustains the fire after ignition.
• B. The fuel that is first set on fire by the heat of ignition.
• C. The material that resists ignition.
• D. The last material to ignite.

Answer: (B)

Material First Ignited is the fuel that is first set on fire by the heat of ignition. It is the fuel closest to or most exposed to the heat source that reaches its ignition temperature and begins burning, kick-starting flame development. This is different from the fuel that continues to burn once a fire is established (the sustained fuel) and from materials that resist ignition. It’s also not the last material to ignite.