TT MD's Flashcards
Multiple Dwelling Mastery
OLT Built before 4-12-1901 1. Height 2. Width 3. Depth ***CL 3 Const, 2-4 apts per floor 4. In what year were most of these bldgs required to fire retard the stairway enclosure? 5. Where is the stairway to the cellar usually located?
- 3-7 Stories
- 20’-25’
- 50’-85’
- 1934 MOST not ALL
- Inside the building, usually beneath the interior stairway.
NLT
- Built -
- Height, Width, Depth, Apts per floor ?
- Where is the entrance to the cellar located?
- How was steel used?
* **All interior walls and furred partitions are required to be firestopped at each story.
- After 4-12-1901 and before 1916
- Generally 6 or 7 Stories, 35 to 50’ frontage, 85’ in depth, 5-6 apts per fll
- Entrance to the cellar is by way of an exterior stair
- Steel I beams were introduced to carry floor joists, generally supported by masonry walls.
* ** Second means of egress is either another stairway OR an exterior fire escape. The fire escape is more generally found.
Newer type NLT”s
- Erected between
- Floor area was broken up into units of ?
- How high do the dividing walls go ?
- Entrance to basement ?
* ** Steel beams for floor joists and steel beams supported by vertical steel columns
- 1916 and 1929
- 2500 Sq ft or less, to avoid being req to be built of fireproof const = FLOOR Areas
- Only as High as the ceiling of the Top Flr
- By a side or rear door via an exterior stair, or through a passageway in the front.
Other Class A NFP MD’s built after 4-18-1929
- What is the size of the area to be enclosed by firewalls?
- During what years werefirewalls required to be carried to the inderside of the roofboards?
- When did this change to the Top of the roof boards?
- 3000 Sq feet
- 1930-1940
- After 1940
General info
- 2 Do not block out Truck, side suction is prefered it permits proper placement of AL TL
- What is an exception to stretching the first line up the interior stairs?
- Who chocks the main entrance door if it is self closing and equipped with a locking device?
- What other 3 instances in which the engine would vary from the usual SOP of stretching to the fire via the interior stairs?
- When flame is issuing from windows opening onto the fire escape and endangering people trying to come down.
- The first member entering the bldg
- a- Store fires , b-Cellar fires, c-Dumbwaiter fires
3.2.10
Hose lines should not be operated into ventilation holes from the roof as this decreases ventilation and nullifies the action of lines operating on the top floor.
- What are the three circumstances when a roofline is operated?
- Used only to prevent fire from extending past a trench (protect personnel may be operated in a brief sweeping side to side motion.
- To protect exposures
- To extinguish fire that cannot be reached from below ex. fire in a cornice
Stretching of hoselines
- First line is stretched by way of the int stairs… what is the primary purpose of this line?
- When is this line advanced ?
- Where is the 2nd line usually stretched?
- How is the third line usually stretched ? esp true in OLT why?
- Primary purpose = safeguard the stairway so that it can be used by escaping occupants
- Advanced when = the safety of the stairway is assured
- Usually up the int stairs to the same fl as the first line …if not needed here then to the flr above
- 3rd line usually stretched via the FE .. OLT=Narrow stairs
Stretching of hoselines
***in some cases the second or third lines may be needed in one of the exposures
EX. Fire in an OLT it is often nec. to stretch the 2 or 3 line into exposure__ or__ because fire has extended or is about to extend across the narrow shaft or shafts between buildings
2 or 4
Materiail thrown out of windows (3.3.4)
- A member must always be posted in yard or street below
- Examination made before discarding any material
- **No material thrown onto___ or into ___
roofs of building setbacks, narrow shafts
It doesn’t matter if a member is posted
The 1st Ladderr is responsible for three things :
- What must the First Officer inside the fire bldg make known to the Chief and other members?
- determine the location of the fire
- whether it is extending
- where it is extending
- The manner in which the floors and apts are designated
Whats the signal ?
- Fire in an Olt or Nlt with fire on two floors? If progress is not made on at least one floor in a short period of time (1a)
- Fire in a shaft extending into an exposure ?
- Fire extending into two exposures ?
- Extra Eng & Truck
1a. Second Alarm - Second Alarm
- Third Alarm
Gas Meters
- Usually in ___, may also be found __
- If burning allow to burn off until gas supply shut. Combustible material near burning meter should be wet down
- If gas is leaking without being ignited -
- A leak or break in pipe may be stopped or diminished by stuffing rags, paper etc. int break
- cellar, apt or public halls
3. Shut supply and ventilate as much as possible….Fog lines may be used for venting
OLT Cellar Fire
1. The first line is stretched to …it is not advanced unless (2 things)
**Can intermittently open and close the door at the top of the interior cellar stairs after ALL occupants have been evacuated
- Second line ?
- the cellar entrance door remain here
1st line not advanced unless :
a. no other outside entrances
b. minor fire - Second line advanced into cellar by way of front or rear entrance to cellar
OLT store fires
- Do we always stretch a 2 1/2 ?
- A charged hose line must be ready before windows are taken
- Store ceilings usually constructed of metal
- Stores in OLT may have a door which opens into the public hallway on the first floor. This area must be examined immediately if needed position a hose line there.
- No, 2 1/2 stretched for large volume fires
2nd line stretched to the entrance hallway if not needed here go above.
Shaft fires
- The hose line is stretched to the —- from which water can be directed onto fire in the shaft
- For fires in rooms in vicinity of the shaft. After the room fire is —, line operated up the shaft to extinguish fire and cool shaft
- Nearest point, *** not where fire originated and must stretch enough hose to reach upper floors.
- Controlled