201-07 Collapse During Structural Firefighting Operations
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Questions and Answers

Which of the following factors can contribute to an increase in structural collapse during firefighting operations?

  • The use of lightweight construction materials
  • The availability of water
  • The age of the building (correct)
  • The presence of firefighters
  • What are some possible warning signs of a building collapse?

  • Bulging walls (correct)
  • Missing mortar
  • Leaning doors
  • Excessive smoke
  • In which type of construction is concrete the primary collapse danger?

  • Type I construction (correct)
  • Type II construction
  • Type III construction
  • Type IV construction
  • What can happen to heated concrete ceilings in reinforced concrete buildings?

    <p>They can spall</p> Signup and view all the answers

    What is the primary collapse danger in a noncombustible/limited combustible building?

    <p>Truss roof cave in</p> Signup and view all the answers

    What can happen to heated concrete floors in steel skeleton buildings?

    <p>They can crack or sag</p> Signup and view all the answers

    Which type of construction is most likely to cause severe damage to surrounding buildings when it collapses?

    <p>Type IV construction</p> Signup and view all the answers

    What is the primary collapse hazard of a wood frame building?

    <p>Combustible bearing walls</p> Signup and view all the answers

    How can masonry walls collapse?

    <p>All of the above</p> Signup and view all the answers

    What is the leading cause of firefighter deaths in collapse events?

    <p>Wooden floor collapse</p> Signup and view all the answers

    Which type of ceiling is considered the most dangerous?

    <p>Suspended 'drop' type ceilings</p> Signup and view all the answers

    What can cause a stairway to fail?

    <p>Both fire weakening and additional weight of firefighters</p> Signup and view all the answers

    Which type of roof collapse is more likely to occur in a newer building with steel bar joist construction?

    <p>Flat roof collapse</p> Signup and view all the answers

    What should firefighters check for when examining fire escapes?

    <p>All of the above</p> Signup and view all the answers

    Which type of roof collapse is more likely to occur when fire enters the space between the built-up roof and the original roof?

    <p>Flat roof collapse</p> Signup and view all the answers

    What should firefighters do if bolts are rusted or missing on a fire escape?

    <p>Consider another means of accessing or exiting the building</p> Signup and view all the answers

    What should firefighters do if treads are rusted or missing on a fire escape?

    <p>Consider another means of accessing or exiting the building</p> Signup and view all the answers

    What should firefighters do if fire is impinging a truss roof?

    <p>Change tactics</p> Signup and view all the answers

    What should firefighters do if the fire is not directly under the roof in the attic of a peaked roof?

    <p>Assume the structural elements are being attacked and not operate on the roof</p> Signup and view all the answers

    What should firefighters do if the roof is connected to the supporting walls in an unrestrained beam resting on a girder?

    <p>Walk near the parapet wall</p> Signup and view all the answers

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