Table of Contents
What are the 4 methods of extinguishing fire?
All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire.
How many ways can you extinguish a fire?
However, some materials may contain enough oxygen within their own chemical makeup to continue burning. These are the three methods of extinguishing fires. The same principle is used in the design of fire extinguishers, such as dry powder fire extinguisher, carbon dioxide extinguisher and others.
What are the 5 types of fires?
Fires can be classified in five different ways depending on the agent that fuels them: Class A, Class B, Class C, Class D, and Class K. Each type of fire involves different flammable materials and requires a special approach. In fact, trying to fight a blaze with the wrong method might make the situation worse.
How many types of fire methods are there?
There are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering.
What are the fire fighting techniques?
Fire Fighting Techniques
- Fog Attack. The hose uses a fog setting to extinguish a fire – ideal for closed compartment fires where there is no wind.
- Indirect Attack. Aimed at the ceiling, the water drops down and extinguishes the fire from above.
- Direct Attack.
- Combination Attack.
- The ‘Two Lines in’ Method.
What is Step 1 of the pass technique?
It’s easy to remember how to use a fire extinguisher if you can remember the acronym PASS, which stands for Pull, Aim, Squeeze, and Sweep. Pull the pin.
What is the best way to extinguish a fire?
Extinguishing a fire the right way!
- Attack a fire in the direction of the wind.
- Extinguish liquid fires and fires caused by dripping substances from the top down.
- Extinguish wall fires from the bottom up.
- Use several fire extinguishers at once, not one after another.
- Take account of any back draft.
What are the three techniques used to fight fires?
The following are the basic firefighting techniques that exist:
- Direct Attack Technique. This must be the most well-known technique for firefighting.
- Indirect Attack Technique.
- The Combination Attack Technique.
- Fog Attack Technique.
- The “Two Lines In” Technique.
How do you extinguish a fire pass?
The PASS Method: Using a Fire Extinguisher
- Pull the pin. Hold the extinguisher with the nozzle pointing away from you and release the locking mechanism.
- Aim low. Point the extinguisher at the base of the fire.
- Squeeze the lever slowly and evenly.
- Sweep the nozzle from side-to-side.
Water is widely available and the best cooling agent to use specially in fires involving solid materials. By evaporating in contact with fire, water also blankets the fire, cutting off the oxygen supply. However, you should never apply water to fires involving hot cooking oil or fat; water can cause the fire to spread.
What are the different types of fire extinguishers?
Types of Fire Extinguishers Water & Foam Carbon Dioxide Dry Chemical Wet Chemical Clean Agent Dry Powder Water Mist Cartridge Operated Dry Chemical
How do you extinguish a Class C fire?
Extinguish a Class C fire by shutting off the electrical power, which serves as the fuel source for the electrical fire. Non-conductive chemicals like carbon dioxide should also be used to suppress the flames. Fires sparked by combustible metals are known as Class D fires.
What chemicals are used to extinguish a Class D fire?
Non-conductive chemicals like carbon dioxide should also be used to suppress the flames. Class D Fires – Extinguish with Dry Powder Agents Fires sparked by combustible metals are known as Class D fires. Titanium, magnesium, sodium, lithium, aluminum and potassium are examples of combustible metals.