Final answer:
The stage of fire that involves smoldering combustion, oxidative pyrolysis, and anaerobic pyrolysis is the Fully developed stage.
This correct answer is A)
Step-by-step explanation:
ISO 19706 is an international standard that provides guidance on fire safety engineering and performance-based design. The different stages of fire, as defined by ISO 19706, are as follows:
Incipient Stage:
This is the initial stage of fire, characterized by a small, localized flame or smoldering combustion. It is the early phase where the fire is still developing and may not yet be producing a significant amount of heat or smoke.
Growth Stage:
This stage is marked by the rapid development and spread of the fire. It involves increasing heat release rates, flames, and smoke production. The fire is becoming more established and poses a greater threat.
Fully Developed Stage:
The fully developed stage is when the fire has reached its maximum size and intensity. It is characterized by a stable and self-sustaining combustion process with the maximum heat release rate. Flames and smoke are prominent during this stage.
Decay Stage:
In the decay stage, the fire diminishes in size and intensity. Heat release rates decrease, and the fire is no longer in a fully developed state. This stage may lead to the fire being extinguished or transitioning to a smoldering phase.
Based on your question, the stages involving smoldering combustion, oxidative pyrolysis, and anaerobic pyrolysis are commonly associated with the Incipient Stage of fire. Therefore, the correct answer is A) Incipient Stage.
This correct answer is A)