What 2 ways do fire extinguishers extinguish a fire?

What 2 ways do fire extinguishers extinguish a fire?

Using a fire extinguisher

• Pull: Pull the pin, this will break the tamper seal.
• Aim: Aim low, pointing the nozzle or hose at the base of the fire.
• Squeeze: Squeeze the handle to release the extinguishing agent.
• Sweep: Sweep from side to side at the base of the fire, the fuel source, until the fire is out.

What are the two types of fire extinguishers?

There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire.

• Class A extinguishers will put out fires in ordinary combustibles such as wood and paper.
• Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.

What are the three 3 types of fire extinguisher and their uses?

How to buy fire extinguishers

• Water fire extinguisher: Water fire extinguishers douse fires by taking away the heat element of the fire triangle.
• Dry chemical fire extinguisher: Dry chemical extinguishers extinguish the fire by interrupting the chemical reaction of the fire triangle.

How do you get smoke out of your house?

If local officials advise you to stay indoors, take these actions in your home to reduce your smoke exposure:

1. Keep windows and doors closed.
2. Use fans and air conditioning to stay cool.
3. Reduce the smoke that enters your home.
4. Use a portable air cleaner or high-efficiency filter to remove fine particles from the air.

Can you burn wood indoors?

The most important pollutants of burning firewood are particulate matter (PM), soot or black carbon, potentially carcinogenic compounds. Wood combustion contributes to both indoor and outdoor air pollution. Known as PM2.5, fine particulate matter is smaller than 2.5 micrometers (µm) in size.

Why are fire dangerous?

Fire Is Deadly Most people who die in fires die from the toxic gases, thick smoke and lack of oxygen. In a fire, breathing even small amounts of these toxic elements can be disorienting, causing some people to pass out. The time to react to a fire/smoke alarm is when it first goes off. Never ignore an alarm.

What are the risks of a fire?

1. Common fire related hazards

• electricity – neglect or misuse of wiring can lead to short circuits.
• rubbish and waste material – fire is likely to spread through accumulated waste.
• smoking – carelessly discarded cigarette butts or lit matches are one of the major causes of fire.

Can humans control fire?

Claims for the earliest definitive evidence of control of fire by a member of Homo range from 1.7 to 2.0 million years ago (Mya). Evidence of widespread control of fire by anatomically modern humans dates to approximately 125,000 years ago.

What will happen if fire goes out of control?

A fire described as “going” or “out of control” is one where parts of its perimeter are burning and have the potential to spread into unburnt areas. The flames of these subside quickly, so the majority of a fire’s interior consists of blackened area where only heavy fuels such as logs and branches continue to burn.