Podcast
Questions and Answers
Which of the following best describes a knee wall in timber roof construction?
Which of the following best describes a knee wall in timber roof construction?
- A wall that surrounds the void space in the attic
- A wall that separates the attic from the living space
- A wall that creates more occupiable space within the attic
- A load-bearing wall that supports the rafters (correct)
What is the impact of knee wall construction on fire dynamics?
What is the impact of knee wall construction on fire dynamics?
- It allows for rapid fire growth in the attic
- It limits natural ventilation and keeps the fire small (correct)
- It creates a detectable rise in temperature in the attic
- It prevents fire spread in the attic
Why do open windows in the attic increase the temperature rapidly during a fire?
Why do open windows in the attic increase the temperature rapidly during a fire?
- They prevent fire spread to other areas of the building
- They provide an additional exit route for potential victims
- They allow more air to reach the fire (correct)
- They allow for better visibility for interior crews
Which type of fires are more complicated to access and extinguish?
Which type of fires are more complicated to access and extinguish?
Where should water be applied first when attacking a knee wall fire?
Where should water be applied first when attacking a knee wall fire?
What is the key to safe and effective suppression of knee wall fires?
What is the key to safe and effective suppression of knee wall fires?
What is the purpose of applying water into the knee wall at multiple locations through small holes?
What is the purpose of applying water into the knee wall at multiple locations through small holes?
Which of the following best describes the purpose of a knee wall in timber roof construction?
Which of the following best describes the purpose of a knee wall in timber roof construction?
What happens when fire enters the void space created by the knee wall?
What happens when fire enters the void space created by the knee wall?
Why do open windows in the attic contribute to the rapid increase in temperature during a fire?
Why do open windows in the attic contribute to the rapid increase in temperature during a fire?
What is the primary challenge in accessing and extinguishing knee wall fires?
What is the primary challenge in accessing and extinguishing knee wall fires?
What is the recommended tactic for slowing fire growth in knee wall fires?
What is the recommended tactic for slowing fire growth in knee wall fires?
Why is it important to control the source fire before opening up large sections of the knee wall?
Why is it important to control the source fire before opening up large sections of the knee wall?
Where should suppression efforts be focused when attacking knee wall fires?
Where should suppression efforts be focused when attacking knee wall fires?
True or false: Knee wall construction creates additional occupiable space within the attic.
True or false: Knee wall construction creates additional occupiable space within the attic.
True or false: Fire can enter the void space created by the knee wall and surround crews conducting interior operations before any visible signs of fire.
True or false: Fire can enter the void space created by the knee wall and surround crews conducting interior operations before any visible signs of fire.
True or false: Opening or removing windows in the attic during a fire can lead to a rapid increase in temperature.
True or false: Opening or removing windows in the attic during a fire can lead to a rapid increase in temperature.
True or false: Knee wall fires can easily go unnoticed without knowledge of basic building construction and fire dynamics.
True or false: Knee wall fires can easily go unnoticed without knowledge of basic building construction and fire dynamics.
True or false: Water application to the knee wall will be effective even before the source fire is controlled.
True or false: Water application to the knee wall will be effective even before the source fire is controlled.
True or false: Applying water along the same path the fire took is the most effective tactic for slowing fire growth in knee wall fires.
True or false: Applying water along the same path the fire took is the most effective tactic for slowing fire growth in knee wall fires.
True or false: The most effective way to handle knee wall fires is to control the source fire, cool the gases before making large breaches, and then aggressively open the knee walls.
True or false: The most effective way to handle knee wall fires is to control the source fire, cool the gases before making large breaches, and then aggressively open the knee walls.
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