Podcast
Questions and Answers
What type of construction are the row houses?
What type of construction are the row houses?
What did the captain request when giving the preliminary status report?
What did the captain request when giving the preliminary status report?
What size of hose was pulled off the apparatus?
What size of hose was pulled off the apparatus?
What was the initial observation of the construction worker who ran up to the arriving pumper?
What was the initial observation of the construction worker who ran up to the arriving pumper?
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What is the trend regarding the use of truss construction?
What is the trend regarding the use of truss construction?
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What is the primary concern for the fire service regarding truss construction?
What is the primary concern for the fire service regarding truss construction?
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What firefighting strategy is recommended for fires in truss constructed buildings?
What firefighting strategy is recommended for fires in truss constructed buildings?
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What was the response of the veteran fire officer when asked about using defensive firefighting for truss structure fires?
What was the response of the veteran fire officer when asked about using defensive firefighting for truss structure fires?
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What is the author's view on the need for change in the fire service?
What is the author's view on the need for change in the fire service?
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What is the timeframe for the increasing collapse during fires in truss buildings?
What is the timeframe for the increasing collapse during fires in truss buildings?
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What is the impact of truss construction on firefighter deaths and injuries?
What is the impact of truss construction on firefighter deaths and injuries?
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What is the author's response to the need for change in the fire service?
What is the author's response to the need for change in the fire service?
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What can weaken the metal surface fastener before installation?
What can weaken the metal surface fastener before installation?
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Where can corrosion of the sheet metal surface fasteners occur?
Where can corrosion of the sheet metal surface fasteners occur?
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What is absent in lightweight wood trusses compared to solid wood beams in terms of fire containment?
What is absent in lightweight wood trusses compared to solid wood beams in terms of fire containment?
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In what type of buildings can lightweight wood truss constructions be expected to fail more rapidly than solid beam constructions?
In what type of buildings can lightweight wood truss constructions be expected to fail more rapidly than solid beam constructions?
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What must fire departments do with truss buildings in their community?
What must fire departments do with truss buildings in their community?
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When was the first known firefighter to die after being trapped by the collapse of a lightweight wood truss?
When was the first known firefighter to die after being trapped by the collapse of a lightweight wood truss?
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What has lightweight wood truss construction led to in terms of firefighter deaths?
What has lightweight wood truss construction led to in terms of firefighter deaths?
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What makes lightweight wood trusses susceptible to loosening during a fire?
What makes lightweight wood trusses susceptible to loosening during a fire?
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What is required for fire service to combat various types of fire inside buildings with lightweight wood trusses?
What is required for fire service to combat various types of fire inside buildings with lightweight wood trusses?
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What is exempt from laws requiring marking of lightweight wood truss buildings?
What is exempt from laws requiring marking of lightweight wood truss buildings?
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What can allow fire to spread more quickly throughout concealed spaces compared to solid wood beams?
What can allow fire to spread more quickly throughout concealed spaces compared to solid wood beams?
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What must the fire service do with truss buildings in their community?
What must the fire service do with truss buildings in their community?
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What are lightweight wood truss systems commonly connected by?
What are lightweight wood truss systems commonly connected by?
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How long can lightweight wood truss systems be expected to collapse in a fully developed fire?
How long can lightweight wood truss systems be expected to collapse in a fully developed fire?
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What is the main concern for the fire service regarding lightweight wood truss systems?
What is the main concern for the fire service regarding lightweight wood truss systems?
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What are the first points to fail in lightweight wood truss systems during a fire?
What are the first points to fail in lightweight wood truss systems during a fire?
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What does the text emphasize as a significant concern for the fire service?
What does the text emphasize as a significant concern for the fire service?
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What does the text underscore the need for in buildings utilizing lightweight wood truss construction?
What does the text underscore the need for in buildings utilizing lightweight wood truss construction?
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What kind of members are connected by gusset plates or gang nails in lightweight wood truss systems?
What kind of members are connected by gusset plates or gang nails in lightweight wood truss systems?
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What is considered a deficient structural connection during a fire in lightweight wood truss construction?
What is considered a deficient structural connection during a fire in lightweight wood truss construction?
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What does the text highlight as the first to fail in lightweight wood truss systems during a fire?
What does the text highlight as the first to fail in lightweight wood truss systems during a fire?
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What is the specific danger highlighted by the text regarding lightweight wood truss construction?
What is the specific danger highlighted by the text regarding lightweight wood truss construction?
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What does the text emphasize the urgent need for in buildings utilizing lightweight wood truss construction?
What does the text emphasize the urgent need for in buildings utilizing lightweight wood truss construction?
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What is the overall emphasis of the text regarding lightweight wood truss systems?
What is the overall emphasis of the text regarding lightweight wood truss systems?
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Study Notes
Lightweight Wood Truss Construction and Fire Hazards
- The text describes a firefighting scenario in a townhouse where firefighters encounter unexpected hazards from lightweight wood truss construction.
- The firefighter and officer enter a smoke-filled apartment but find no fire until the ceiling collapses, revealing flaming wood trusses.
- Lightweight wood truss systems are commonly used in building construction, featuring smaller wooden members connected by sheet metal surface fasteners called gusset plates or gang nails.
- These truss systems are increasingly used in homes and apartments, but they can be expected to collapse after approximately ten minutes in a fully developed fire.
- The main concern for the fire service is the sheet metal surface fastener, which only connects the outer 1/2 inch of wood truss members, making it a deficient structural connection during a fire.
- The design of the truss can be defended from an engineering viewpoint, but the sheet metal surface fastener is considered a dangerous structural connection.
- During a fire, the points of connection, particularly the insufficient depth of penetration of the nailing points, are the first to fail in lightweight wood truss systems.
- The text also details the firefighting operation in the townhouse, including the firefighter becoming trapped and seriously burned, and the officer escaping by crashing through a glass window.
- The hazards faced by the firefighters stem from the lightweight wood truss construction, which is a significant concern for the fire service.
- The incident highlights the dangers of lightweight wood truss systems and the need for increased awareness and safety measures in buildings constructed using this method.
- The text provides a detailed account of the firefighting operation and the specific dangers posed by lightweight wood truss construction, emphasizing the need for improved safety measures and regulations in building construction.
- Overall, the text underscores the potential hazards and structural deficiencies associated with lightweight wood truss systems, as well as the urgent need for greater attention to fire safety in buildings utilizing this construction method.
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Description
Test your knowledge about the fire hazards associated with lightweight wood truss construction in buildings. This quiz covers the structural deficiencies, firefighting challenges, and the need for safety measures in buildings constructed using this method.