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Which type of building material is affected by size and moisture content during fire
conditions? - Answer✅✅ Wood
How does the size of a wooden structural member affect how it reacts to fire? -
Answer✅✅ Heavy timbers remain strong even after exposure to direct flame.
How does heat affect masonry? - Answer✅✅ Stones and concrete may experience
spalling when they are heated.
Cast iron may crack or shatter when it is: - Answer✅✅ rapidly cooled with water.
When heated, steel structural members tend to: - Answer✅✅ elongate and push
walls outward.
Which factor is likely to affect the speed with which a steel structural member fails
under fire conditions? - Answer✅✅ Size
How does reinforced concrete react to exposure to fire? - Answer✅✅ It performs
well, but can lose strength through spalling.
, Which type of building material is used to protect other materials because its
moisture
content gives it excellent heat resistance? - Answer✅✅ Gypsum wallboard
What is a concern about lath and plaster during a fire? - Answer✅✅ Conceals
hidden fires and adds fuel to the fire
Which statement describes how glass will react under fire conditions? - Answer✅✅
Heated glass may crack when water is applied.
Which type of building material can produce toxic gases and rapidly deteriorate
under
fire conditions? - Answer✅✅ Oriented strand board (OSB)
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? -
Answer✅✅ Particle board
When should firefighters begin considering the potential that a building will collapse?
- Answer✅✅ During preincident surveys and size-up
Which type of collapse is common for a Type V construction building? - Answer✅✅
Walls collapsing inward
Why can abandoned buildings pose great danger of fire and collapse? - Answer✅✅
The interior may be gutted and altered.
In which stage of fire development does structural collapse become likely due to the
weakened state of structural members and buildup of water? - Answer✅✅ The
interior may be gutted and altered.
How do a building's contents affect fire growth and structural collapse? -
Answer✅✅ 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: -
Answer✅✅ the structure is retaining water and at risk of collapse.
What is an indicator of structural collapse? - Answer✅✅ Distorted structural
members
When establishing collapse zones,: - Answer✅✅ apparatus must not be positioned
in the collapse zone.
Traditionally, how large is the collapse zone? - Answer✅✅ 1 1/2 times the height of
the structure
, When should a collapse zone be established at a structure fire? - Answer✅✅ Once
a defensive strategy is adopted
Once it is determined that collapse is imminent,: - Answer✅✅ the collapse zone
should be cleared as soon as possible.
What should take place immediately after the collapse zone is cleared? -
Answer✅✅ Personnel accountability report
Which statement accurately describes how building materials and configuration
affect
fire behavior in a structure? - Answer✅✅ The longer the fire has burned, the more
likely it is that structural integrity has been
compromised.
Why are buildings under construction more susceptible to fire spread? -
Answer✅✅ Sprinklers and FDCs are not yet operational
How can HVAC systems affect tactical ventilation? - Answer✅✅ Move products of
combustion to unaffected areas
How can water from fire suppression affect a building's structural stability? -
Answer✅✅ Water weight added from suppression can cause floors to collapse.
Overhaul operations may affect a structure's stability when: - Answer✅✅
firefighters accidentally cut through load bearing components.
Which should be continually evaluated for size-up? - Answer✅✅ What resources
will be needed to resolve the situation
What must a Fire Fighter II be able to do to assist at technical rescue incidents? -
Answer✅✅ Recognize hazards associated with the type of incident
Stabilizing a rescue incident may involve: - Answer✅✅ diverting or blocking traffic.
The controlled opening near the Command Post is monitored by: - Answer✅✅ the
Accountability Officer.
Only personnel directly involved in resolving the emergency are allowed within the:
- Answer✅✅ hot zone.
Before entering into the hot zone, personnel must: - Answer✅✅ sign in to the
personnel accountability system.
Access is limited to personnel directly supporting work performed at the site of the
actual