How many stages of fire development are there?

The correct answer is based on the widely accepted concept of fire development, which identifies four distinct stages. These stages are ignition, growth, fully developed, and decay.

Understanding these four stages is crucial for firefighters, as it helps them anticipate fire behavior and adjust their tactics accordingly.

In the ignition stage, flammable materials begin to burn, leading to the initial growth phase where the fire starts to spread. As the fire enters the fully developed stage, it reaches its peak intensity, presenting the most significant risk and required intervention. Finally, during the decay stage, the fire's intensity diminishes as fuel is exhausted or as the fire is extinguished.

These stages are foundational knowledge for effectively combating fires and ensuring safety on the scene.