What are the limitations of fire extinguisher?

– Only once can be used. – Not suitable for combustion of electrical and metallic tools. – Cannot be placed where the temperature is cold and can freeze. – Cannot control and remove large fires.

What are the limitations of water as a fire extinguisher?

Disadvantages Of Water Extinguishers

Do not use on electrical fires due to shock hazards. Using water fire extinguishers for fat and also flammable liquids will aggravate the fire.

What is the main disadvantage of a multi purpose fire extinguisher?

Reduces visibility when discharged, so consideration required when placing near escape routes, stairwells, etc. May aggravate respiratory conditions when discharged. Limited cooling properties. While Powder is safe for use on electrical fires, it can cause corrosion.

What are some of the disadvantages of a foam fire extinguisher?

Disadvantages Of Foam Extinguishers

A foam fire extinguisher is mostly water. therefore should not be used on Class E fires. The aqueous solution is corrosive and requires to be cleaned after used, particularly on painted surfaces. It is advised to not use foam extinguishers for class F fires.

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What are the disadvantages of fire?

Disadvantages: Fire can cause soil damage, especially through combustion in the litter layer and organic material in the soil. This organic material helps to protect the soil from erosion. When organic material is removed by an essentially intense fire, erosion can occur.

What are its advantages as a fire extinguisher?

When you use a portable extinguisher to put out a blaze early on, you reduce the amount of harmful pollutants being released, while also reducing the amount of water required to fight the fire, helping minimise impact on the environment.

Does a fire extinguisher cause damage?

Proper use of fire extinguishers is generally safe; however, there is some risk for mild respiratory, skin, or eye irritation. Use in areas with poor air flow, use with intent to harm someone, or intentional inhalation of fire extinguishers can produce serious toxicity and would require medical evaluation.

What 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.

What are some of the disadvantages of using water as an extinguishing agent quizlet?

Which of the following is a disadvantage to using water as an extinguishing agent? It reacts explosively with some metal vapors. What class of foam is used on three-dimensional solid fuel fires? Which of the following foams is compatible with dry chemical fire suppressants?

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What is a disadvantage of using dry powder extinguishers?

Thoughtless use may lead to the powder causing more damage than the fire itself, using dry powder fire extinguishers in kitchens or offices as powder can contaminate food and inhibit the use of electrical components such as keyboards if discharged.

What are the advantages and disadvantages of fire class 7?

Answer:- The advantage like we use fire to cook our food, warm our homes in winter, to generate electricity etc. While the disadvantage is that fire is dangerous if it goes out control. However, thousands of homes and shops are damaged due to fire.

What are the advantages and disadvantages of controlled fires?

Regular burning also reduces fuel loads and prevents more catastrophic wildfires that can harm people and property.

  • Lower Risk of More Dangerous Fires. …
  • Control of Invasive Species. …
  • Minimize the Spread of Pests and Diseases. …
  • Improve Watershed Conditions. …
  • Reduce Tree Competition. …
  • There’s Always Some Risk. …
  • Air Quality.