Ch 16 IFSTA Question and answer 2023 verifiedHow does heat affect masonry?
Select one:
a. Bricks may experience spalling when they are heated.
b. Bricks will crumble after minimal exposure to heat and flame.
c. Stones and concrete will crumble after exposure to direct flame.
d. Stones and conc...
Ch 16 IFSTA Question and answer 2023
verified
How does heat affect masonry?
Select one:
a. Bricks may experience spalling when they are heated.
b. Bricks will crumble after minimal exposure to heat and flame.
c. Stones and concrete will crumble after exposure to direct flame.
d. Stones and concrete may experience spalling when they are heated. - correct
answer Stones and concrete may experience spalling when they are heated.
When establishing collapse zones,:
Select one:
a. the IC should wait to cordon the zones off until an offensive strategy has been
adopted.
b. interior crews should be allowed to finish tasks before exiting the structure.
c. apparatus must not be positioned in the collapse zone.
d. the size of the collapse zone depends on the width of the building. - correct answer
apparatus must not be positioned in the collapse zone.
Why can abandoned buildings pose great danger of fire and collapse?
Select one:
a. The interior may be gutted and altered.
b. The interior may be compartmentalized.
c. The exterior may be made of lightweight components.
d. The exterior may be covered with flammable materials. - correct answer The interior
may be gutted and altered.
Which building material can potentially be harmful to firefighters because it contains a
glue called urea formaldehyde that gives off a hazardous gas when it is heated?
Select one:
a. Plywood
b. Mineral wool
c. Particle board
d. Cellulose - correct answer Particle board
How do a building's contents affect fire growth and structural collapse?
Select one:
a. Contents can retain water and increase the stress on structural members.
b. Contents burn more slowly than structural members, so it takes longer for the fire to
grow.
c. Contents help distribute the weight in the building evenly, which adds structural
stability.
, d. Contents create barriers that help block fire spread. - correct answer Contents can
retain water and increase the stress on structural members.
What should take place immediately after the collapse zone is cleared?
Select one:
a. Personnel return to the staging area
b. After-action report
c. Size-up
d. Personnel accountability report - correct answer Personnel accountability report
How does reinforced concrete react to exposure to fire?
Select one:
a. It contracts and forces building walls inward.
b. It performs well, but can lose strength through spalling.
c. It takes longer to fail after exposure to fire.
d. It elongates and pushes building walls outward. - correct answer It performs well,
but can lose strength through spalling.
Which type of building material can produce toxic gases and rapidly deteriorate under
fire conditions?
Select one:
a. Steel
b. Glass
c. Lath and plaster
d. Oriented strand board (OSB) - correct answer Oriented strand board (OSB)
Which statement accurately describes how building materials and configuration affect
fire behavior in a structure?
Select one:
a. Fires in structures with a low fuel load have a lower tolerance to fire and will burn
hotter than other fires.
b. Buildings with a high level of compartmentation are more susceptible to rapid fire
spread.
c. Buildings with lightweight engineered components are less likely to collapse
unexpectedly.
d. The longer the fire has burned, the more likely it is that structural integrity has been
compromised. - correct answer The longer the fire has burned, the more likely it is that
structural integrity has been compromised.
Which type of building material is affected by size and moisture content during fire
conditions?
Select one:
a. Glass
b. Wood
c. Concrete
d. Masonry - correct answer Wood
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