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THE FIRE INQUIRER

DRRR PRESENTATION

GROUP 4

11 - ST. JOHN BERCHMANS

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JUST IN: FIRE PREVENTION IS A MUST!

Fire Hazards

FIRE HAZARDS

BREAKING NEWS:

refers to workplace dangers that either involve the presence of flames, worsen the risk of uncontrolled fires, or increase the effects of a fire.

* HOME ERROR

fires are frequently caused by negligence and human mistake.

Fire Hazards is something that everyone should know about. in order to save not only one life but the lives of others as well.

* COOKING

grease fire is the most typical sort of kitchen fire.

*COMBUSTIBLE MATERIALS

solids or liquids that quickly catch fire and burn are considered combustible materials

Fire Ttrahedron

TODAY'S RELEVANT

HEAT

FIRE TETRAHEDRON

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FUEL

OXYGEN

A tetrahedron can be described as a pyramid which is a solid having four plane faces. Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction.

HEAT

A source of heat is required in order for ignition to occur, and different materials have different ‘flash points’ e.g. the lowest temperature at which they ignite. Unfortunately, combustion reactions also produce heat as they burn, further increasing the temperature of the fuel. For some types of fire, the heat can be cooled with the application of water.

FUEL

A fire cannot begin if there is no material to burn. Homes and businesses are full of flammable materials, such as paper, oil, wood and fabrics. Any of these can serve as a fuel for a fire. Some materials burn more easily than others. Fuels are probably the most difficult ‘side’ of the fire triangle to remove, so it’s wise to store them appropriately to prevent them becoming a fire hazard.

OXYGEN

To sustain the combustion reaction, oxygen (or an oxidising agent) is needed, as it reacts with the burning fuel to release heat and CO2. Earth’s atmosphere consists of 21% oxygen, so there is plenty available to trigger a fire if the other two components are present.

Fire blankets and certain fire extinguishers remove the oxygen ‘side’ of the triangle by removing it or displacing it, causing suffocation and thereby ceasing the combustion reaction.

Wildfires

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WILDFIRES

an uncontrolled fire that occurs in the vegetation of a wilderness, frequently in a rural setting. Forests, grasslands, savannas, and other habitats are all vulnerable to wildfires.

causes:

human activities / natural occurences (lightning)

Dixie Fire, California (2021)

Bush Fire, Australia (2020)

TYPES OF WILDFIRE

GROUND FIRES

SURFACE FIRES

CROWN FIRES

LADDER FUELS

Building Fires

BUILDING FIRES

also known as structure fire is a fire that involves a structure, where its a residential, commercial or industrial.

Here's a place for the fourth part of your presentation. And to the right, there are subsections for more specific detail.

causes:

Cooking Equipment, Electrical & Lighting Equipment and Human Activity

WHAT CAN WE DO?

THIS IS WHAT WE CAN DO:

> unplug appliances when not in use

> double check stoves and ovens after each use

> store gasoline, newspaper and other combustibles away from sources of flame

> keep an eye on burning candles

> have electrical conncetions checked once every 2 years by a licensed electrician

THANK YOU FOR LISTENING !

We hope you learned something <3

END

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