drrr q2

involve the presence of a flame,

increase the probability that an

uncontrolled fire will occur or increase

the severity of a fire should one occur.

fire triangle

FIRE TETRAHEDRON

slightly more

complex model to describe the

components needed to ignite and

sustain a fire. It is a four-sided

geometric representation of the four

factors necessaryfor fire

This first stage begins when heat, oxygen

and a fuel source combine and have a

chemical reaction resulting in fire.

also known as “ignition” and is

usually represented by a very small fire

which often goes out on its own, before

the following stages are reached

where the structures

fire load and oxygen are used as fuel for

the fire.

When the growth stage has reached

its max and all combustible

materials have been ignited

Usually, the longest stage of a fire, the

decay stage is characterized a significant

decrease in oxygen or fuel, putting an end

to the fire