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Questions and Answers
What is the set of practices intended to reduce destruction caused by fire?
Fire safety
What are the elements of the fire tetrahedron?
What is one of the most effective approaches in fire extinction?
Removing the heat
What is smothering in the context of fire extinguishing?
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Which of the following are types of fire extinguishers?
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In Class B fires, the best way to deal with them is by smothering them or removing ____ using foam or CO2 fire suppression.
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Which class of fire involves flammable liquids and gases?
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Which of the following materials can cause Class D fires?
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What is necessary to prevent the occurrence of a fire?
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What are the elements of the fire tetrahedron?
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What must be kept in the lowest practical quantity at the workplace?
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What is one effective approach to extinguish a fire?
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Which of the following is NOT a type of fire extinguisher?
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Class A fires involve _______ materials
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What type of fires do Class C classes represent?
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Which class of fires requires special attention because they are difficult to extinguish?
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Flammable liquids include substances like petrol and ethanol.
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What should you do first when operating a fire extinguisher?
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Study Notes
Fire Safety Overview
- Fire safety practices aim to minimize destruction from fires.
- The "fire triangle" consists of oxygen, heat, and fuel; the addition of a chemical reaction forms a "fire tetrahedron."
Flammable and Combustible Substances
- Flammable liquids should be stored in minimal quantities, including petrol, ethanol, acetone, and diesel.
- Combustible substances can ignite and include materials like cloth, wood, paper, and various gases.
Methods to Extinguish a Fire
- Cooling: Water is commonly used to absorb heat, effective until the water cannot draw more heat.
- Starving: Removing the fire's fuel source allows it to self-extinguish.
- Smothering: Reducing oxygen levels, such as covering a fire with a fire blanket, is essential for extinguishing flames.
Types of Fire Extinguishers
- Water Extinguishers: Suitable for Class A fires.
- Foam Extinguishers: Effective on Class B fires by smothering flames.
- Dry Powder Extinguishers: Versatile for Class A, B, and C fires.
- CO2 Extinguishers: Best for Class B and C fires, displacing oxygen.
- Wet Chemical Extinguishers: Specifically designed for Class K fires in kitchens.
Fire Extinguisher Operation Steps
- Pull the Pin: Break the seal to allow use.
- Aim: Stand back and direct the nozzle at the base of the fire.
- Squeeze: Press handles together to discharge the agent.
- Sweep: Move the nozzle side to side until fire is out; repeat if necessary.
Classification of Fires
- Class A: Involves everyday combustibles like wood and paper.
- Class B: Involves flammable liquids and gases (e.g., gasoline, propane).
- Class C: Relates to electrical fires, prevalent in tech-heavy industries.
- Class D: Concerns fires with metals like magnesium and titanium, found in labs.
- Class K: Specific to cooking-related fires with oils and greases in food service.
Principles of Fire Prevention and Control
- Prevent Fire Occurrence: Use materials that slow fire development to ensure quicker escape.
- Control fire behavior to maintain safety and manageability.
Fire Safety Overview
- Fire safety practices aim to minimize destruction from fires.
- The "fire triangle" consists of oxygen, heat, and fuel; the addition of a chemical reaction forms a "fire tetrahedron."
Flammable and Combustible Substances
- Flammable liquids should be stored in minimal quantities, including petrol, ethanol, acetone, and diesel.
- Combustible substances can ignite and include materials like cloth, wood, paper, and various gases.
Methods to Extinguish a Fire
- Cooling: Water is commonly used to absorb heat, effective until the water cannot draw more heat.
- Starving: Removing the fire's fuel source allows it to self-extinguish.
- Smothering: Reducing oxygen levels, such as covering a fire with a fire blanket, is essential for extinguishing flames.
Types of Fire Extinguishers
- Water Extinguishers: Suitable for Class A fires.
- Foam Extinguishers: Effective on Class B fires by smothering flames.
- Dry Powder Extinguishers: Versatile for Class A, B, and C fires.
- CO2 Extinguishers: Best for Class B and C fires, displacing oxygen.
- Wet Chemical Extinguishers: Specifically designed for Class K fires in kitchens.
Fire Extinguisher Operation Steps
- Pull the Pin: Break the seal to allow use.
- Aim: Stand back and direct the nozzle at the base of the fire.
- Squeeze: Press handles together to discharge the agent.
- Sweep: Move the nozzle side to side until fire is out; repeat if necessary.
Classification of Fires
- Class A: Involves everyday combustibles like wood and paper.
- Class B: Involves flammable liquids and gases (e.g., gasoline, propane).
- Class C: Relates to electrical fires, prevalent in tech-heavy industries.
- Class D: Concerns fires with metals like magnesium and titanium, found in labs.
- Class K: Specific to cooking-related fires with oils and greases in food service.
Principles of Fire Prevention and Control
- Prevent Fire Occurrence: Use materials that slow fire development to ensure quicker escape.
- Control fire behavior to maintain safety and manageability.
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Description
Test your knowledge on essential fire safety practices, the components of the fire triangle, and methods to extinguish various types of fires. Learn about flammable and combustible materials, as well as different types of fire extinguishers suitable for specific fire classes.
