Question

Research three different types of fire extinguisher and explain how these can be used to put out different fires, you must relate this to the fire triangle and the section that is removed

Answer 1

The fire triangle is composed of 
1) heat
2) fuel
3) oxidizing agent (oxygen)

Types of fire extinguishers:
1) Water and Foam -  extinguish the fire by taking away the heat element of the fire triangle. Foam agents separate the oxygen element from the other elements.
2) Carbon dioxide - extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge.
3) Dry Chemical - extinguish the fire primarily by interrupting the chemical reaction of the fire triangle.
4) Wet Chemical - extinguishes the fire by removing the heat of the fire triangle and prevents re-ignition by creating a barrier between the oxygen and fuel elements
5) Clean Agent - extinguish the fire by interrupting the chemical reaction of the fire triangle
6) Dry Powder - extinguish the fire by separating thefuel from the oxygen element or by removing the heat element of the fire triangle
7) Water Mist - extinguish the fire by taking away the heatelement of the fire triangle
8) Cartridge Operated Dry Chemical - extinguish the fire primarily by interrupting the chemical reaction of the fire triangle