Multiple Dwellings Flashcards
OLT How many stories? How many apts per floor? How wide? Deep? Is there an interior cellar stair?
3-7 stories
2-4 apts per floor
20-25’ wide. 50-85’ deep
Has interior stair to cellar
NLT How many stories? How wide? Deep? How many apts per floor? Is there an interior cellar stair?
6-7 stories 35-50’ wide 50-85’ deep 5-6 apts per floor Only Exterior entrance to cellar
What are the 3 functions of a roof hose line?
1- prevent fire from extending past trench
2-protect exposures
3- extinguish fire that cannot be reached from below
MD’s
How do you open a window to vent?
TorF material will not be thrown onto roofs, narrow shafts, or setbacks?
Fire on 2 floors of OLT, do you request an extra engine and/or truck? NLT?
Who can order the use of an outside stream?
2/3 from top 1/3 from bottom
True not onto roofs or setback or into narrow shafts
Extra engine and truck for both
Only an IC can order this (can be first officer on scene)
When using an outside stream into a building with members inside, what must they do?
They must get to a safe location and be verified by HT or personal contact of IC
OLT cellar fire
Where do the 1st two lines go?
1st - cellar door inside of building, down stairs to extinguish minor fire or no other entrance. Not down the stairs if there is an outside entrance (unless minor)
2nd - into cellar by way of front or rear entrance
OLT store fire
1st and 2nd line
2 1/2” stretched for large volumes of fire
2nd line stretched to entrance hallway. When not needed on first floor it can go to the floor above
*no plate glass windows be broken without a charged line being ready.
who has smaller cockloft OLT or NLT?
TorF
Top floor apartments are searched regardless of location of fire in OLT.
OLT are smaller
True top floor apartments always get checked
In an H type what is the primary way to the roof?
Wing or isolated stair, or adjoining building
H type Store fire Where does the 1st line go? 2nd line? 1st truck? 2nd truck?
1st line into the store
2nd line backs up the 1st line, if not needed to the floor above
1st truck, into the store
2nd truck to floor above
NLT/H-types cellar fire
Where does 1st line go
Where does 1st truck go?
1st line to one of the numerous cellar entrances to seat of fire
1st truck goes to cellar to find fire
Trench cut
How wide?
How far from initial vent hole?
When can do you pull a trench?
3’ wide
20’ from initial vent hole
When fire reaches the inspection holes
Hi-rise md
When building has scissor stairs were should you get info of floor layout?
Prior to selecting attack stair should everyone access the fire floor from same or different stairwells?
What are the 4 variables that will effect smoke movement?
2 floors below for scissor stairs to get floor layout
Everyone from the same stair until attack stair is selected
4 variables that effect smoke movement:1-pressure, 2-stack effect, 3-wind, 4-hvac
Hi-rise md
Vent of fire apt is ordered by who? All over vent is ordered by who?
Stack effect is influenced by what 4 factors?
wind moving accords roof will cause (low or high) pressure and help (positive or negative) stack effect.
Vent of fire apt is ladder officer, all other vent ordered by IC
Stack effect influenced by: 1-height of building, 2-temp difference between inside and outside, 3-air leakage, 4-wind
Wind moving across roof will cause low pressure and help positive stack effect (wind blows away pressure)
Hi-rise md
Can stairs other then evacuation stair be used for ventilation?
Who ensures that elevators are recalled and searched?
Each member and equipment weighs greater than __lbs.
If using an elevator with fireman service who initially goes in? If it doesn’t have fireman service who is in?
Stair other then evacuation stair can be used for ventilation
2nd ladder ensures elevators are recalled and searched (1st will recall them wether to be used or not)
275lbs for each member and equipment
With fireman service- OV, ladder officer, irons, can, engine officer, and 1 engine ff
Without fireman serive - ladder officer, irons, can, engine officer, nozzle, control.