Loft Buildings Flashcards
A loft building with a frontage of 25 feet or less will:
A. have interior columns
B. not have interior columns
B. will not
These will provide FF with visual contrast to discern exposure 2,4 and the width of the building.[LOFTS]
A. windows
B. roof line
C. vault
D. quoins
D
What does a large piece of granite stone covering the sidewalk to the curb line indicate?[LOFTS]
full sidewalk vault
When should freight elevators(no fireman service) be used during fire ops in a loft building?
A. initial opsB.
IC’s approval
C. when the fire location is confirmed
D. when the fire is knocked down
B. ICelevator doors often look like apt doors
In a loft, a window serving an elevator shaft facing the street will be identified be:
A. its smaller size
B. its different shape
C. elevator sign
D. shaftway sign
D. shaft sign
avoid laddering
At a loft fire never operate a stream into a shaft window.
T/F
false
do not unless visible fire is extending up the shaft
which is an incorrect statement about cast iron columns?
A. weak in compression
B. weak in tension
C. possible weakness due to being cast improperly
D. may not be thick enough to support its load
A.
cast iron is strong in compression
A______column is 20% stronger than a ______ column.square/roundwhich column were reserved for upper floors and which were reserved for lower floors?[LOFTS]
square 20% stronger than round
square lower—–round upper
It is a myth that when a cast iron column is exposed to fire then cooled by a hoseline it will shatter but if improperly cast can contract disproportionately when cooled by a line.[LOFTS]
T/F
true
if they are properly cast they can withstand a great deal of thermal stress
subjected to heat for a long period of time cast iron columns can fracture and fail. At 1100 degrees it will lose ___% of its strength[LOFTS]
58
when a cast iron column is cooled it will regain 40% of the strength lost.[LOFTS]
T/F
false
never regained. strength loss is cumlatitive
Iron fibers can elongate or extend column if heated. this can result in:[LOFTS]
A. column unable to move will crack
B. column will bend and eventually buckle
C. cause the floor above to spall
D. explode violently killing everyone within 1500 feet
A.
If interior columns are used to support girders they must line up vertically creating a cast iron shaft. Failure of a single column can collapse all columns collapsing the building.T/F
true
wrought iron is [strong/weak] in compression and [strong/weak] in tension.[LOFTS]
strong—-strong
which is incorrect about wrought iron?
[LOFTS]
A. used for segmental arch floors over 20 feet
B.will delaminate and rust at connections
C. inferior to cast iron as a horizontal support member(girders/beams/lintels)
D.will elongate and lose strength when heated
C.
strong in tension so it became a logical substitute for cast iron horizontal supports in the mid 19th century
Mill lofts are of heavy timber construction(both floors and roof).
These buildings have [2/4] load bearing walls.
2
With a truss roof in a mill loft vertical ventilation is generally limited to opening up skylights and stair bulkhead doors.T/F
true
If a firefighter finds himself lost in a mill loft building and realizes he is crawling around on the original hardwood flooring he should know it runs_________________
A. front to rear
B. side to side
A. front to rear
just call a fucking mayday
Stars(reinforcing plates) on a mill loft building ina uniform pattern__________an Irregular pattern__________(choose one below)
mean part of original construction
OR
put in later to tie in opposing walls due to age and deterioration
uniform——–original
irregular——–later for age/deterioration
In cast iron, mill and fireproof loft buildings the initial hoseline shall be:
A. 1 3/4
B. 2 1/2
C. Depends on conditions
B
In cast iron and mill loft buildings:
- the 1st truck inside team is responsible for VEIS of____________.
- the 2nd truck inside team is responsible for VEIS of___________.
- fire floor
2. floors above
In cast iron and mill loft buildings if straight run stairs are encountered who will notify the IC [1st or 2nd ladder] at:
lower floor fires_________
upper floor fires_________
lower floor 2nd ladder
upper floor 1st ladder
At cast iron and mill loft buildings lower or upper floor fires the 1st OV’s primary position will be the ________. The second OV will reinforce this position.
A. front (no life hazard in front)
B. rear
C. exposures 2 or 4
D. roof
B.
exception is helping LCC with life hazard
At a top floor fire in cast iron or mill loft billings who’s assignment is bringing a saw to the roof?
2nd roofman
no other tools/equipment mentioned for roof ff
-access to roof can be adjoining, aerial or TL, Fire escape
The 1st ladder at a cast iron or mill loft building (sub)cellar fire will gain access to the fire area via the___________.
If conditions prevent access to the (sub)cellar by this way communicate this to the IC and and 2nd ladder company who will gain access via alternate means with the second hoseline.
This will be communicated and coordinated with the IC.
interior stairs
the first ladder co will remain with the first hoseline on the floor above the fire searching for life, fire extension, and providing ventilation.
- At cast iron and mill loft buildings fires below grade may require alternative means of access for hose line placement. What member of the 1st or 2nd truck will communicate this possibility to the IC along with the required man power and equipment needed to achieve this objective to the IC?
- Which member of the 1st or 2nd truck should be aware of the need for specialized FE tools and equipment in the rear?
- 1st OV
2. 2nd OV
The roof FFs at mill and cast iron loft building fires will coordinate the vertical ventilation of straight run stairs being used for attack with____________.
A. inside team
B. IC and truck officer in fire area
C. inside team and engine co. officers
D. engine co. officers
C
In fireproof residential loft buildings Lad co and eng co ops shall be conducted in accordance with FFP MD fires class A FPMD fires. T/F
true
non residential have many of the same hazards as high-rise office buildings. no lad co. ops mentioned
eng co. ops mention emphasis on a few things including positioning for deckpipe or TL
In cast iron and mill loft buildings, after ____ lines have been stretched up a stairway, additional lines should be stretched via alternate stairways(if available), exterior rope stretches, or fire escapes. Interconnected buildings may also provide access.
two
At a cast iron or mill loft building the use of LCS can only be authorized by the IC. The 1st due engine officer shows up to a fully involved mill loft building and immediately hooks up to a TL and operates before the BC arrives. Do you agree or disagree with this action?
agree
IC includes the 1st eng off
If high heat is felt through members gear and there is a segmental arch floor directly overhead. In this situation it is ok to operate the line straight up in the air.
T/F
False
segmental arch floors exposed to fire can spall violently and possibly fail when struck by from a hose line below. Use the reach of the stream and do not operate the stream directly overhead.
In cast iron and mill loft building (sub)cellar fire the first eng co should stretch the 1st hoseline via:
A. entrance allowing quickest access
B. interior
B.
if conditions prevent advancing down the interior stairs notify the IC and remain at this position to prevent upward extension.
In cast iron and mill loft building (sub)cellar fires protected by a sprinkler system servicing the fire area if the first eng co has not supplied it who will?
2nd eng–shall assist 1st with 1st line and supply sprinkler
no mention of 3rd due ensuring sprinkler being supplied
3rd and 4th stretch second line
In cast iron and mill loft buildings, all hoseline commitment and coordination shall be communicated to the IC/sector supervisor.T/F
true
In cast iron and mill loft building fires on upper and lower floor fires the 2nd due engine co ensures sprinkler system is supplied.
T/F
false —3rd due
3rd & 4th eng stretch 2nd line and operate as per IC
Which is incorrect about the weakness or possible weakness of a cast iron column?
A. May be improperly cast
B. May not be thick enough for the load it supports
C. Even if properly cast will not withstand a great deal of thermal stress
D. Not designed to withstand eccentric loads
E. Being bolted into position may lead to connections with too much play
C. They will withstand a great deal of thermal stress
In a loft building passenger elevators will have fireman service. Normally they will be located within a vestibule near the front door. Some enter directly from the sidewalk. Doors often look like apt entrance doors.
T/F
true
In a loft building freight elevators can be used during initial ops if they provide the quickest access to the fire. They have no fireman service.
T/F
False
not used during initial ops. May be used after IC approval for greater movement.
