20 Questions
Which of the following factors can contribute to an increase in structural collapse during firefighting operations?
The age of the building
What are some possible warning signs of a building collapse?
Bulging walls
In which type of construction is concrete the primary collapse danger?
Type I construction
What can happen to heated concrete ceilings in reinforced concrete buildings?
They can spall
What is the primary collapse danger in a noncombustible/limited combustible building?
Truss roof cave in
What can happen to heated concrete floors in steel skeleton buildings?
They can crack or sag
Which type of construction is most likely to cause severe damage to surrounding buildings when it collapses?
Type IV construction
What is the primary collapse hazard of a wood frame building?
Combustible bearing walls
How can masonry walls collapse?
All of the above
What is the leading cause of firefighter deaths in collapse events?
Wooden floor collapse
Which type of ceiling is considered the most dangerous?
Suspended 'drop' type ceilings
What can cause a stairway to fail?
Both fire weakening and additional weight of firefighters
Which type of roof collapse is more likely to occur in a newer building with steel bar joist construction?
Flat roof collapse
What should firefighters check for when examining fire escapes?
All of the above
Which type of roof collapse is more likely to occur when fire enters the space between the built-up roof and the original roof?
Flat roof collapse
What should firefighters do if bolts are rusted or missing on a fire escape?
Consider another means of accessing or exiting the building
What should firefighters do if treads are rusted or missing on a fire escape?
Consider another means of accessing or exiting the building
What should firefighters do if fire is impinging a truss roof?
Change tactics
What should firefighters do if the fire is not directly under the roof in the attic of a peaked roof?
Assume the structural elements are being attacked and not operate on the roof
What should firefighters do if the roof is connected to the supporting walls in an unrestrained beam resting on a girder?
Walk near the parapet wall
Test your knowledge on structural collapse risks and safety measures for firefighters in the 21st century. Explore the factors contributing to collapse, such as building age, abandonment, lightweight materials, and faulty renovations. Stay informed and prepared for firefighting operations with this quiz.
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