Should fire extinguishers only be used for small fires?

When workers are allowed to use fire extinguishers, three very specific conditions must be met: Only use a portable fire extinguisher on small fires in their incipient or beginning stages; Page 2 Only use a fire extinguisher when you know what type of material is burning; Only use a fire extinguisher when you have been …

Can fire extinguishers be used on large fires?

Portable extinguishers are useful for putting out small fires; however they are not effective against large, spreading fires. … Do not use on Class B or C fires; may cause fire spread or electrical shock.

Is using fire extinguishers allowed during small fires?

Fire extinguishers are appropriate for small, incipient stage fires, no bigger than a wastepaper basket. University policy states that individuals are not required to fight fires, but those who choose to do so must have been trained in the proper use of fire extinguisher.

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What fire extinguishers are used for what?

For fires involving cooking oils and fats (a Class F fire), a wet chemical extinguisher can be used. The wet chemical fire extinguisher can also be used on Class A fire, but foam or water extinguishers are more common. Dry powder extinguishers smother fires by forming a barrier between the fuel and source of oxygen.

When should a fire extinguisher not be used?

Do Not Use For

Dry Powder fire extinguishers should not be used in the following scenarios: Fires involving electronic equipment over 1000v. Kitchen fires involving cooking oil. Fires raging in enclosed spaces.

What size of fire extinguisher do I need?

Consider the Size of the Room

For a room of average dimension, a 5-lb fire extinguisher may be sufficient. For larger commercial spaces and warehouses where a fire has more room to spread, a larger 10-lb model may be necessary.

Which type of fire extinguisher must not be used on electrical equipment?

Electrical fires need to be put out by a substance that is non-conductive unlike the water or foam found in class A fire extinguishers. If someone attempts to put out an electrical fire with something like water, there is a high risk of electrocution since water is conductive.

When you attempt to use a fire extinguisher to put out a fire you should?

Aim the nozzle at the base of the fire and approach to a distance of about 10 feet, then squeeze the trigger to discharge the extinguisher. Approach the fire slowly, sweeping from side to side to cover the base of the fire evenly with the extinguishing agent.

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What fire extinguisher should be used on materials?

Use: Water fire extinguishers are best for combatting Class A fires, for example fires involving organic solid materials, such as wood, cloth, fabric, paper and plastics. Dangers: Do not use on burning fat or oil and also never use on fires involving electrical appliances.

Which fire extinguisher should not be used in confined spaces?

When a CO2 extinguisher is used in a confined space there is danger that the user may become overwhelmed by the sudden increase in carbon dioxide emissions. This occurs as CO2 is an asphyxiant, and the confined space means oxygen will be replaced by the CO2 much faster.

Which fire extinguisher is best for home?

Powder fire extinguishers are most often recommended for use in the home. When used, these fire extinguishers spray a chemical-based powder that effectively smothers the flames and subdues the source of the fire.

Which of the following types of extinguisher would it be safe to use on a small electrical fire in an enclosed atmosphere?

On an electrical fire, a C02 fire extinguisher is the safest option as it leaves no residue and is an ideal solution for extinguishing fires involving electrical appliances as it does not cause damage to the site.

Which type of fire extinguisher is only suitable for fighting Class A fires?

Water extinguishers are only suitable for Class A fires consisting of paper, wood, straw, coal, rubber, solid plastics and soft furnishings.

Which fire extinguisher would you keep in your kitchen?

The answer is you can use either a dry powder fire extinguisher which has a blue coloured label,or a CO2 fire extinguisher which has a black label. Both fire extinguisher types are suitable to use on electrics which many people have in a kitchen so both are a good example to use if your toaster was to catch fire!

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