Podcast
Questions and Answers
What is one way to avoid the mixing of extinguishing agent with burning liquid?
What is one way to avoid the mixing of extinguishing agent with burning liquid?
- Introduce more oxygen to the fire
- Use water as an extinguishing agent
- Increase the heat of the burning liquid
- Use alcohol-resistant fire fighting foams (correct)
How do different solids react when exposed to heat?
How do different solids react when exposed to heat?
- They all release combustible vapors
- They all melt and change state
- Metals decompose into volatile components
- Wood and plastics will not melt (correct)
At what temperature does pyrolysis of wood typically begin?
At what temperature does pyrolysis of wood typically begin?
- Above 400°F (204°C)
- At 500°F (260°C)
- Below 400°F (204°C) (correct)
- Exactly at 400°F (204°C)
Which material is commonly used in upholstered furniture?
Which material is commonly used in upholstered furniture?
Why does the surface-to-mass ratio of fuel affect how easily it ignites?
Why does the surface-to-mass ratio of fuel affect how easily it ignites?
Which type of fuel does not contain carbon?
Which type of fuel does not contain carbon?
What physical states of matter can a fuel be found in?
What physical states of matter can a fuel be found in?
What is the main difference between organic and inorganic fuels?
What is the main difference between organic and inorganic fuels?
How is power defined in the context of fire behavior?
How is power defined in the context of fire behavior?
What is necessary for flaming combustion to occur with fuels?
What is necessary for flaming combustion to occur with fuels?
What is the minimum temperature required for a liquid to give off sufficient vapors to ignite, but not sustain combustion?
What is the minimum temperature required for a liquid to give off sufficient vapors to ignite, but not sustain combustion?
Why do flammable liquids with high vapor pressure present a special hazard to firefighters?
Why do flammable liquids with high vapor pressure present a special hazard to firefighters?
What is the ratio of the mass of a given volume of liquid compared to the mass of an equal volume of water at the same temperature called?
What is the ratio of the mass of a given volume of liquid compared to the mass of an equal volume of water at the same temperature called?
What does the flash point of a liquid fuel indicate?
What does the flash point of a liquid fuel indicate?
Why are liquids such as gasoline considered difficult to extinguish using water alone?
Why are liquids such as gasoline considered difficult to extinguish using water alone?
What is the primary consideration when it comes to the surface-to-mass ratio of a fuel?
What is the primary consideration when it comes to the surface-to-mass ratio of a fuel?
How does the orientation of a sheet of 1/8-inch plywood paneling affect the way the fuel burns?
How does the orientation of a sheet of 1/8-inch plywood paneling affect the way the fuel burns?
Which of the following materials does NOT react by melting when exposed to heat?
Which of the following materials does NOT react by melting when exposed to heat?
What happens when wood first heats up according to the text?
What happens when wood first heats up according to the text?
Why are flexible polyurethane foam and other synthetic materials significant in home construction?
Why are flexible polyurethane foam and other synthetic materials significant in home construction?
What is a more accurate description of fire when it is fully developed?
What is a more accurate description of fire when it is fully developed?
In fuel-limited fires, what role does available fuel play?
In fuel-limited fires, what role does available fuel play?
What happens in a compartment fire that is already ventilation-limited when additional ventilation points are added?
What happens in a compartment fire that is already ventilation-limited when additional ventilation points are added?
In which scenario does fuel-limited full development commonly occur?
In which scenario does fuel-limited full development commonly occur?
What is one of the outcomes when a fire runs out of available fuel or oxygen?
What is one of the outcomes when a fire runs out of available fuel or oxygen?
What is the primary role of introducing new oxygen to a ventilation-limited fire?
What is the primary role of introducing new oxygen to a ventilation-limited fire?
When does a fuel-limited fire usually enter the decay stage?
When does a fuel-limited fire usually enter the decay stage?
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