BOSH Mod 4

is a chemical reaction between a flammable or combustible

material and oxygen. This process converts the flammable or

combustible materials and oxygen into energy. Other by-products include light, smoke and other gases.

The _______ illustrate the elements

necessary for fire to start and the methods of extinguishment.

Each side represents an essential ingredient for fire. The three

elements are _________.

When a fire starts, a fourth

element is necessary which is ______ for

flame propagation. The four-sided figure is called the ______.

Any material that will burn is classified as ?

______ is a substance having a flashpoint below 100 °F (37.8 °C) and vapor pressure not exceeding 20 psia at 100 °F.

______ is a substance having a flashpoint at or above 100 °F (37.8 °C).

______ the lowest temperature at which fuel begins to give off flammable vapors and form an ignitable mixture in air.

Which is more dangerous: a substance with low flashpoint or a substance with a high flashpoint?

This completes the chemistry of fire Even if found together, fuel and oxygen will not burn. An example is a piece of paper. This fuel is exposed to oxygen in the air but will not burn. Why? Because we need to introduce the third element which is ______