Taxpayers Flashcards
taxpayer
t/f
wood truss get spongey prior to failure
false, fail with no warning
taxpayers
sprinkler protection in sq/ft for following codes:
1938,1968,2008
1938= area exceeding 10,000sq/ft
1968= area exceeding 7,500sq/ft
2008=full building are exceeds 12,000sq/ft, combined area on all floors exceed 24,000sq/ft, occupancy within exceeds 7,500sq/ft, any area 3 stories above grade or in a high rise office, any area that has an unenclosed stair or escalator connecting 2 or more floors
taxpayer
unprotected steel joist may collapse after __-__min
5-10min
50’ steel “I” beam heated to 970degrees expand__”
50’ 970 degees expands 4”
*cooling a steel beam will regain strength
100’ steel “I” beam heated to 100degrees expands ___”
100’, 1000degrees expands 9.5”
*cooling a steel beam will regain strength
taxpayer
failure of which is the most severe
column, girder, or beam
column
taxpayer
a bowstring truss may only support __% of what it was originally designed to,
40%
taxpayer
heavy fire may lead to collapse in __min
20min
taxpayer
what size hole in the roof?
8’x8’ or as large as possible
taxpayer
cellar fire where does the 1st line go?
must be stretched to the interior basement stairs, if conditions permit go down interior stairs.
*flooding 1st floor with TL streams or monitors are a last resort
taxpayer,
who ensures the sprinkler is supplied
3rd engine
taxpayer
cellar fire, where does the 2nd line go
protect 1st line if they went downstairs, stretch to exterior cellar entrance if 1st line cant go down interior stairs.
taxpayer,
where should the first 2 hoselines be stretched for a store fire? for a cockloft fire?
store/cockloft fire the 1st two hoseline should be stretched into the store
T/F
taxpayer
in the event of a cellar fire or serious 1st floor fire where ops are doubtful and a trench cut may be advisable as a defensive measure if it is feared fire will eventually get into the cockloft
true
taxpayer
at a store fire who brings a saw to the roof?
2nd roof
taxpayer
at a cockloft fire who brings a saw to the roof?
1st and 2nd roof bring a saw
taxpayer
at a cellar fire when the 1st floor is going to be cut, where should you cut?
as close to windows as possible away from doors and aisles
taxpayer
cockloft fire, where does the 1st line go when fire is extending to exposure? what if not extending?
if extending to exposure then into exposure that is most seriously exposed, if not extending then into store under main body of fire
taxpayer fire
what ladder companies shall bring 10’ and 12’ hooks with them?
all ladders other then 1st and 2nd
taxpayer
3 situations for a second alarm?
extension to cockloft, extension to adjoining occupancy, or advanced fire in cellar
___% of a room or fire area contains explosive mixtur for the entire area to explose
25%
taxpayer
who shuts down the utilites>
1st ladder inside team (2 members go as a team)
taxpayer, cellar fire, where do the 1st 2 trucks operate?
1st ladder inside team - goes into store above fire
2nd inside team - to adjacent stores to check for extension, perform search
who can order the ventilation of the store front window
IC
