Deck 9 Flashcards
The placement of aerial ladder is dependent on what four conditions?
- Weather immediate Resque is apparent- Where No immediate resque is required, the size and frontage of the building to be covered in case of future needs- Smoke, heat or fire causing an exposure that would endanger a vitmin, a member or the Ladder- Area or street conditons that might hamper optimum positioning.2.1 GS
A–For an A/L what is the recommened distanceof the tip from the objective ?B–In case of resque what is distance?C– What is the exception to this recommended minimum distance?
A– 2” to 6” inchesB– in case resque use the 2 “ position so ladder resr against window sill after weight is put on it.C– exception is at a very extreme angle allow the ladder to barley touch the building to prevent excessive movement when a FF cllimbs to a high elevation.3.1.5 GS
A–When placing A/L at a window how should it be positioned?B– (cross referance P/L) When placing a P/L at a window how should it be positioned?
A–A/L placement must allow for unimpeded acess and egress at the window, the tip shouls be less then 6 inches over the window sill.3.1.6 GSB– P/L at window tip shall be even with the window sillP/L 8.5.1
A– How position A/L for resque for a fire escape?B– (cross referance P/L) How place P/L at a fire escape?
A– A/L places alongside the fire escape and against the building ( 2” out from FE) with the tip about one to three ft above the FE balcoy railing. if possible place A/L on the least exposed side of buildingNote- remenber loss in height due to ladder locks.L2 3.3 GSB- P/L place alongside FE on the building wall tip shall be 1 to 3 feet above FE railing.– place P/L against a FE tip shall be slightly above FE railing8.5.1
A–How position A/L for severe fire at narrow frontage building (30 feet or less) no people showing on arrival?B– when can use P/L operation be used instead od A/L?
A– position A/L turntable in center of building and ready for raising the aerial.B– when all ladder operatiopn can be performed effciently w P/L ex. involved and EXPOSED stuctures are 3 stories or less in height ( building not what fl fire is on) OR street conditions allow for apparatus to pass another piece of apparatus.3.4 GS(cross refeance Auc 200 5.3.10 D4)where Building (not fire Fl) involved is higher than 3 stories. perference shall be given to ladder co. app entering block first . wgere building involved is 3 stories or less preference shall be gigen to eng co app entering block first and ladder co carrying portable laddders.- ladder before eng co app if building located at end of narrow dead end block
A–how positon A/L fisrt due at Severe fie large frontage building (over 30 feet) no people showing?B- How position same building if conditions require possible aerial ladder operations or possible use of ladder pipe?
A- if no condition exist in front of building requiring a definite position, plcae center TURNTABLE appox. 15 feet from the side wall passed on your approach. when taking this position do not set up for aerial ladder operations UNLESS fire is at the end of the building you have approached and far end seems relatively safe . this diff then position for small frontage 30 feet or less3.5.1 GSB– if at same building there is a condition requiring possible aerial ladder operations or possible use of laddr pipe (esp. large commercial or public occupanies) then position A/L for MAXIMUM coverage3.5.3 GS
A–When can an A/L be moved when there is a FF and victim position on it?
Only in an extreme emergency such as direct exposure to flame or great heat will movement of ladder with FF and the victim on it be justified. 5.6 GSFYI- can move A/L horzitional or angle up and down but cant move sections /rungs if FF on it.8.9 and 8.10
A– At Vacant buildings fires Off of A/L shall consider need for access and positioning of Tower ladders in order utilize their extingusihing capabilities. however what vacant building fires where A/L have precedence to the positioning of the A/L?
A- - A building not completely vacant- Off receives information or has pior knowledge that part of this building is used by vagrants or squatters- the reach of his his 100 foot aerial is required to expedite or execute certain tasks or assignments6.6.1 GS
Generally What is the preferential order for removal of people ?
- Interior stairs2. Horizontal exits3. Fire escapes4. Laddrs5. Life saving rope resque
A. what is proper positioningof an A/L to roof ?B-( Cross referance) what is proper positioning P/L to roof?
a– A/L to roof extend ladder so that that tip is at least 5 feet(can be more) above the piont where ladder comes in contact with the building.7.13 GSB– Pace P/L to roof so Tip shall be at least 2 feet(can be more) above roof or parapetP/L 8.5.1 GS
What are the reasons for using A/L to ladder the roof?
- fire building is isolated and roof ventilation is required2. other means of acess to roof of fire building are unavailable or cut off and roof operations are evident whether for ventilation or resque.3. as means of escape for operating forces or civilians guided by FFs4. any other situation where its use would significantly improve operationsNote: when fire conditions might endanger FFs, civilians, or the apparatus, consideration should be given to laddering the roof of an adjoining structure for access and egress.7.14 GS
If A/L becomes coated with ice, try to avoid movement before defrosting. what is order to remove ice from A/L?
- free rungs2. ladder locks3. trussing4. main beams
A–Roof access to an isolated building office should consider safe operation of an aerial ladder in a cantilever positon. whats the maximum safe distance for aerial measured from horizintally from tip of aerial to center of the turntable?B- (cross refance Regs 11) Using A/L as a Ladder pipe. With water flowing and a man climbig the ladder, the correct angle of the ladder will be that when the horizontal distance between the tip of the ladder and center of the turntable is between?
A– 40 ft maximumB– 15 to 25 feet (70 to 80 degree angle)(cross refence Evolution 21 A/L used as a water tower) -Ladder 70 angle from ground-Maximum extension of fly ladder(tip to ground) with 1 1/2 tip, and under extreme conditions, is 80’.
