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Firefighter 2 EOC
Terms in this set (15)
Which type of building material is affected by size and moisture content during fire conditions?
How does size of a wooden structural member affect how it reacts to fire?
heavy timbers remain strong even after exposure to direct flame
How does heat affect masonry?
Stones and concrete may experience spalling when they are heated.
Cast iron may crack or shatter when it is
rapidly cooled with water
When heated, steel structural members tend to:
elongate and push walls outward.
Which type of building material is used to protect other materials because its moisture content give it excellent heat resistance?
Which building material can potentially be harmful to firefighters because it contains a glue called urea formaldehyde that gives off toxic gases when it is heated?
When should firefighters begin considering the potential that a building will collapse?
During the pre-incident surveys and size-up
Which type of building collapse is common for Type V construction?
walls collapsing inward
Why can abandoned buildings pose a great danger of fire and collapse?
the interior may have been gutted and altered
In which stage of fire development does structural collapse become more likely due to the weakened state of structural members and buildup of water?
How does a building's contents affect fire growth and structural collapse?
contents can retain water and increase the stress on structural members
Little or no water runoff from the interior of the structure can be an indicator that
the structure is retaining water and at risk of collapse
Traditionally, how large is a collapse zone?
1 1/2 times the height of the structure
Why are buildings under construction more susceptible to fire spread?
sprinklers and FDCs are not yet operational
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