FFP Taxpayers Flashcards
(119 cards)
1
Q
Removing the cornice gives access to the cockloft in this type of taxpayer
A
Older type built turn of the century-1920’s; The most prevalent TP 1920-1960’s will NOT provide cockloft access
2
Q
Do you cut LW Open Web Steel TP roofs?
A
Do NOT cut…limit vent to removal of skylight & scuttle cover (emphasis horizontal vent)
3
Q
1st HL @ TP Cellar fire- does it advance down?
A
Yes- HL charged before advancing down. 2nd HL protects at the top of the stairs. Keep doorway open
4
Q
TP fire is ILP recommended for 1st Eng?
A
Yes & if staffing permits feed sprinkler
5
Q
Who shuts down utilities in TP fires
A
1st Ladder inside team (different than Collapse)
6
Q
TP 1st Fl/Cockloft fire who takes the 1st saw?
A
1st Due Roof takes PL & saw, Hook
7
Q
1st FF to the roof with the saw must also bring?
A
Hook; subsequent FF brings iron/ax with saw if available
8
Q
Room requires _ % of space to contain explosive mixture for backdraft
A
25%
9
Q
HL used in TP fires
A
Med/Heavy 2 1/2” HL;
Light fires 1 3/4”; Exposures 1 3/4” may be used
10
Q
Who stretches 2nd HL for TP cellar fire
A
2nd Eng is conditions permit, otherwise 3rd Eng
11
Q
TP 1st Fl fire/Cockloft fire who ensures the sprinkler supplied?
A
3rd Eng- may also stretch line as ordered by IC
12
Q
2nd Roof FF tools at TP Cellar fire
A
2nd PL to roof & saw (1st saw) and iron/axe
13
Q
2nd FE team at Store/Cockloft fire
A
FE adjacent stores to search & vent
14
Q
2 story TP w/fire on 2nd fl is treated as a fire originating on the 1st fl of 1 story TP with added emphasis on
A
Need for AL to roof for venting & PL used to access 2nd floor. FE team uses stairway to the 2nd fl
15
Q
Bldg Code for sprinklers 1938 vs 1968 (sq footage)
A
“10-75” ‘Older is Bigger’ 1938 >10,000 sq ft;
1968 >7,500 sq ft require sprinklers
16
Q
Standard Pattern of attack at TP fires
A
FE, Vent, Pull ceilings, Operate HL “Fat Vinny Puts Out”
17
Q
Trench cut at least _’ wide & _’ from initial vent cut
A
3’; 20’- Does NOT take place of vent holes
18
Q
What is the last resort for TP cellar fires
A
Flood 1st Fl w/Stang or TL pipe
19
Q
2nd Lad FE Team for TP Cellar fires?
A
Adjacent stores & cellar entrances
20
Q
TP fire can a 2nd HL go to an exposure?
A
2nd HL may go to another seriously exposed building, or may have to skip several stores to confine cockloft fires.
21
Q
2nd Roof tools at Store/Cockloft fire
A
2nd PL & 2nd Saw
22
Q
Trucks other than 1st or 2nd due should report with _ in addition to normal tools
A
10 & 12’ hooks; Ejectors could also be used to vent below grade areas
23
Q
1st & 2nd LCC position after TL & AL placement
Most fires in TP originate
A
Join FE team if not directed otherwise
Storage/utility area in rearmost of TP
24
Q
In _ TP the flooring of 1st floor may not extend under raised front window display area
A
Older TP- remove paneling under these windows for vent & water application
25
1938 Code Rules for Max permitted area of structure
10,000, 14,500, 17,500 sq ft for 1, 2, 3 street fronts. Doubled if sprinklered
26
Can HL be used into a trench cut?
Yes; Delayed entry/pulling ceilings. FF must be withdrawn first. Afterward, small holes can be made to check for water accumulation
27
1st saw at Cellar TP fire brought by?
2nd Roof FF (1st Roof FF places PL & vents skylights/scuttles after communicating & coordinating w/Lad Off)
28
TP fire can the 1st HL be stretched to an exposure?
1st HL may to go Exp depending on life hazard
29
TP Store/Cockloft fire variation for the 1st due LCC?
If fire extends to cockloft proceed to roof & assist Roof FF; otherwise join FE team after TL/AL positioning
30
During business hours, how does 1st Eng advance the HL?
Via store front windows- keep exit doors for pedestrians
31
2nd LCC at Store/Cockloft position
Place AL away & join FE team if not directed otherwise
32
2nd OV variation Store/Cockloft fire
Proceeds to roof or other position as directed
33
Warning signs of Backdraft
Reversal of air pulling smoke back into a smoke filled opening, Glass windows stained w/smoke condensation & pulsating from the pressure of the fire, & Dense black smoke indicating lack of O2 & large qty of free carbon & CO gas. Other colors of smoke w/backdraft are dirty brown, yellow brown, & gray yellow
34
1968 Code for Max permitted area of structure
7,500 sq ft if no sprinklers; No limit if sprinklers
35
Mezzanine areas will be found _
Some are found in rear of store or bldg, Some along one side from front to rear or along part of one side, & Few have been erected in center of premises
36
Characteristics of Mezzanines
Height of ceilings in mezzanine & area below will be below average, Access via small wooden stair or just a ladder, Very seldom will there be another means of egress, Majority will NOT be enclosed & there will be a railing at the edge
37
Most common roof construction
Wood joists covered with either tongue & groove boards or plywood. Roof then covered w/combustible waterproofing material called tarpaper or built up roofing which may be several layers thick. Layer of tin in old taxpayers.
38
Roof joists may supported at approximately _' intervals, by exterior brick bearing walls, interior load bearing studded partitions, wood or steel girders supported by steel lally columns or wood columns
20' intervals.
39
In older type truss roof buildings, the trusses may be spaced _ feet apart with roof beams installed between the trusses to support the roof coverings
10 or 20' apart
40
T/F Wood truss roofs will sag or get spongy before failing
False: Wood truss roofs appear to fail without warning. Steel trusses tend to stretch when losing strength, but wood snaps
41
Open web steel joists are used to span long distances- up to _'
Up to 60'. Vulnerable to elevated temperatures and may collapse after only 5-10 minutes from fire
42
An average 50' long steel beam, heated uniformly over its length to 970F will extend _;
At 1000F a 100' beam will extend _
In length approximately four inches;
| 9 1/2" in length
43
T/F Cooling steel member will cause it to regain strength and load carrying ability, and there should be no hesitation in cooling these members. Once cooled FF's will be allowed to work underneath the cooled steel beams
False: FF's should NOT be allowed in the possible collapse zone, whether cooled or not. Steel could shorten to original length and pull the end of the beams off their support or twist the beam allowing joists to drop
44
Cast iron columns are unpredictable and can fail within _
Thirty minutes
45
The most common type of flooring in taxpayers is _
Tongue and groove boards or plywood, supported by wood floor joists
46
Warning sign that will signal a potential structural collapse during FF operations are a heavy body of fire which has been burning out of control for _
20 minutes or more, particularly in a large open floor area
47
Three basic factors necessary for ordinary combustion are also necessary for a backdraft: _
Combustibles, Oxygen, & heat
48
Backdrafts can occur in any part of a structure, but the most particularly vulnerable area is _
Cellar and Storage areas
49
The most effective method of protecting FFs from the effects of a backdraft _
Opening the roof or area directly over the fire, allowing hot gases to move upward through the opening away from the fire
50
An alternative to roof venting although not as effective to prevent a backdraft is _
Use of hose stream near the entrance. FF's protected using a flanking position or by the reach of hose stream. Water can cool a potentially explosive atmosphere
51
The standard (flat) roof may have little or no pitch. If it's pitched, it will be from _
Front to rear. Most fires originate in rear of 1st fl where utilities, storage, & services are located. This low portion of the cockloft allows fire to spread rapidly to higher cockloft areas
52
The roof cut for vertical ventilation must be large enough to permit quick exit for the heat, smoke, and gases. A hole _
Eight feet by eight feet where possible is recommended. Multiple saws, sufficient hooks, & staffing are an absolute necessity
53
The immediate ventilation and cutting of an effective size hole on the roof calls for _ saws and _ members on the roof
Two saws and four members on the roof
54
When is a Roof Sector Supervisor required to supervise roof ops?
When more than one power saw is working on the roof. Additional ladder companies should be special called to the scene as needed. 1st arriving Off should initiate this
55
How shall engine companies use the fog pattern to relieve an area of heat & smoke?
Adjust fog pattern to width of the opening and stand back 4-5 feet while operating. Can be used in conjunction with smoke ejector (super vacs) carried to some Ladder Companies
56
How shall roof cuts be made?
In one operation. They should be lifted off in one piece if possible. If NOT, roof covering removed 1st followed by removal of roof boards. All obstructions below removed or opened by pushing down from roof through such openings
57
Generally, wood joists run the _ side of a bldg;
| Wood joist beams are usually spaced _" on center
Short side- particularly in older TPs where frontages do NOT exceed twenty feet;
16" on center w/wood flooring & roof boards nailed directly to roof beams at right angles to these joists
58
T/F Once you open a ceiling and visually observe the run of the joists, it can be assumed that all joists throughout the bldg run the same
False- In most cases joists will run the same direction, but there are exceptions
59
If it's not possible to make an eight feet by eight feet cut in a serious cockloft fire or where a heavy heat & smoke condition exists in the cockloft, what shall be done?
The Largest opening possible shall be made
60
On the standard roof where the roof boards are nailed to the roof joists, the _ cut is preferable
The Rectangular cut. If not made initially, they should be made subsequently when the run of the joists have been determined.
61
Can a Company Off be assigned as the Roof Sector Supervisor?
Yes, but if roof cutting is critical a Chief Off should be assigned as the Roof Sector Supervisor to coordinate & direct roof ops
62
At cellar fires it is often necessary to cut the 1st floor to provide ventilation and allow water to get on the fire via bent tips, distributors, or cellar pipes. The cut should be made _
As near the the windows as possible and away from doorways and aisles. Extend cut at right angles to the joist. All cuts covered by HL
63
In newer taxpayers the roof supports are of lightweight open web steel joists. The most common decking is _
Corrugated steel. With this type of decking the joists are spaced from four to six feet
64
White powdery residue during saw operations indicates _
Gypsum roof. Members should immediately notify Roof Sector Supervisor and IC and evacuate the roof
65
T/F If an eight feet by eight feet cut cannot be managed, have the member pull the four feet by four feet segment first
False. Never allow the smaller segment of the vent hole to be pulled until the necessary additional leg cuts are placed in the cutting pattern. Early removal of initial segment will prevent saw team from completing add'l cuts
66
What is the distance of a trench cut and in what direction is it made?
Trench cut is an opening made the full distance between two exterior walls or other firestops. Trench may be made in any direction
67
If a trench cut is initiated, does the IC need to be notified?
Immediate notification of the IC of operation is mandatory
68
What objects can be taken advantage of when making a trench cut?
Shafts, chimneys, bulkheads, scuttles, etc. Reduces amount of cutting for trench.
69
Incident Command Post for TP fires
Proximity to front of fire bldg but outside of collapse zone
70
When two handlines are operating on an advanced fire in a store, the IC shall _
Special call an extra engine and ladder
71
TP fire with extension to the cockloft, adjoining occupancy, or for an advanced fire in the cellar shall _
Transmit Second Alarm. The need for additional ladder companies at these operations is great, anticipate such and special call as needed
72
TL at TP fires
If TL NOT assigned on initial response and its use is anticipated special call one. When the TP faces more than one street consider the need for one on each street
73
A properly positioned TL can cover a bldg with a frontage of _
100'
74
Portable ladder placement at TP fires
All sides should be covered with a minimum of two portable ladders placed on the front of the bldg. Provides alt egress from roof and indicates boundaries of fire bldg or location of division walls within the boundaries of fire
75
TL should be positioned IFO fire bldg in preference to conventional AL. How shall TL be positioned to direct streams into the stores?
Basket of TL can be positioned a foot or two above the street level & TL stream can be directed into store or stores.
76
Cockloft heights for TP's
4" to more than 6'
77
1938 Bldg Code: Concealed roof space areas to be cut into areas of _ sq ft or less by fire stops
3,000 sq ft or less
78
1968 Bldg code: Construction class of TP generally IIB or IIC. Describe each
IIB Exterior walls are non-combustible with a rating. Protected wood joists.
IIC Exterior walls are non-combustible with a rating. Unprotected wood joists.
79
1968 Bldg code: Concealed spaces in ceilings unless sprinklered should be fire stopped into areas not exceeding _
3,000 sq ft
80
Gypsum Plank: Standard planks are 2" thick, 2' wide & 8' long. They are supported at _' intervals under normal roof loads. Heavier gauge steel edged plate may be used for spans up to _'
4';
| 7'
81
2008 Bldg Code for Sprinklers in Group M Mercantile Bldgs Full Bldg:
Full Bldg: area exceeding 12,000 sq ft OR
Combined area on all flrs including mezzanine exceeds 24,000 sq ft
Storage of merchandise is in high & piled racks or rack storage arrays
82
2008 Bldg Code for Sprinklers in Group M Mercantile Bldgs: Occupancy within the Bldg
Area exceeding 7,500 sq ft OR
Area of any size located 3 stories above grade OR
Any area size in Hi-Rise Bldg OR
Area of any size contains unenclosed stairs or escalators connecting 2/more floors
83
Snow drifts caused by wind on roofs create a _ load that can overload trusses
Eccentric (off-centered) unbalanced, Concentrated load
84
Bldgs w/Bowstring Truss Roofs must be entered into eCIDS with abbreviation _ as FD designation
BWSTRG
85
What is the fire rating of Open Web Steel Joists:
No resistance rating. Fire rating depends upon ceiling finish & finished roofing
86
Stability of Masonry Walls is very much dependent on integrity of _
Roof. Roof acts as a monolithic brace which ties walls together. Roof is holding up walls by providing lateral support
87
Fires in Smoke Shops- Consideration should be given to _
Knocking down fire from sidewalk area before entry attempted. Recommended 2 1/2" HL stretched & proceed with extreme caution
88
Factors that reference the severity of Backdraft _
Type of gases & their temperature, Pressure & make-up, Size & location of areas involved, Type and size of openings made by FD, Proximity of openings in relation to fire, Amount of turbulence in bldg by direction & velocity of wind and hose streams directed in bldg
89
Can members operate on the roof of a wooden, metal, or combo bowstring truss designed roof?
Under No Circumstances
90
Methods to determine if fire involves trusses in attic areas above the ceiling:
TIC from below to assess if fire has involved truss space or a Triangle cut in sloping hip section in front &/or rear of roof from TL bucket with a Collapse zone adhered to
91
When fire is found to involve the truss space, _ should be the primary tactical consideration.
Exterior ops. If possible, an exterior hose stream from TL may be directed into roof cuts made from TL bucket to extinguish the fire
92
Due to hip rafters being pushed in a down & outward fashion when roof collapses particular attention shall be given to _
Front and Rear walls
93
2nd Eng TP Cellar Fire
Assist 1st Eng w/initial HL. If bldg protected by Sprinkler System & 1st Eng has NOT supplied it & staffing permits a 2nd HL shall feed this system. After supplying Sprinkler system stretch a BU HL
94
2nd HL at TP Cellar fire shall be used for (4) _
Control of 1st fl if 1st Eng advanced into cellar via interior entrance,
BU or protection line for 1st Eng,
Stretch into Cellar via interior stairs or outside entrance if 1st HL controlling 1st fl,
Employ use of cellar or distributors over fire
95
Who shall Ensure Sprinkler System supplied for Cellar fire in TP?
3rd Eng. If 2nd Eng assisting w/1st HL, stretch a 2nd HL as well
96
Fire in a cockloft of a TP: Where shall IC order a Cockloft nozzle?
Into the interior to knockdown fire in cockloft
97
Can windows be removed for ventilation in the front of stores for 1st floor and cockloft fires?
Yes when authorized by IC & only when a charged HL in position
98
Which of the following is not a warning sign that will signal a potential collapse during firefighting operations at a taxpayer fire?
A. Walls leaking smoke or water.
B. Cracks in exterior walls.
C. Spongy or soft feeling as you walk on the roof.
D. Water, ice or snow loads on the roof.
D Cause
99
Bowstring truss roofs. Which choice is incorrect:
A, Under no circumstances shall any member operate on the roof of any building involved in a content or structural fire
B. If timber trusses are involved in fire, exterior ops should be the primary tactical consideration.
C. To determine if fire has entered the truss space, make a triangular cut at the high point of the roof from a tower ladder bucket.
D. Units are reminded of the collapse potential of these type roof systems, with particular attention being paid to the front and rear walls
C. Triangular cut in the sloping hip section in the front and/or rear of the roof from the safety of a tower ladder bucket.
100
Wooden Bowstring Truss Roof incorrect?
A. Easily recognized silhouette; if not obscured by signs, built up parapets or smoke conditions.
B. Truss roofs can collapse due to loads that were not considered in the original design. These include roofing material, new mechanical equipment, etc.
C. Members may not operate on the roof of a fire building with a bowstring truss unless they receive permission from the IC.
D. Buildings with bowstring truss roofs must be entered into the eCIDS program with the abbreviation BWSTRG as the abbreviation.
C. Under no circumstances will any member operate on the roof of any building involved in a content or structural fire with a wooden, metal or combination bowstring truss design. Taxpayers (5.2.25 A Note)
101
Units are operating at the scene of a heavy fire in the cellar of a 1 story taxpayer. Incorrect:
A. 1st due engine stretched a 2 1/2" hose line into the occupancy above the fire
B. The 2nd ladder company shut down the utilities to the fire building
C. The 2nd ladder roof firefighter brought a saw to the roof, since it was not needed elsewhere
D. The 3rd engine company ensured the sprinkler system was supplied
B. The 1st ladder is responsible for the utilities in taxpayer fires. Taxpayers (8.2.2 F)
Note D is a recent change & is correct as written. Taxpayers (7.2.3 C)
102
Not correct sprinklers in TP?
A) Required in areas exceeding 10,000 square feet under the 1938 Code
B) Required in areas exceeding 7,500 square feet under the 1968 Code
C) Req'd under 2008 Code for a full bldg w/an area >7,500 sq ft or when combined area on all flrs including mezzanines exceeds 10,000 sq feet
D) Req'd under 2008 Code if storage of goods is high piled racks or rack storage arrays
E) Req'd under 2008 Code for occupancy w/in a bldg w/area >7,500 square feet or area of any size is located 3 stories above grade or area of any size is located in a hi rise bldg or area of any size contains an unenclosed stair or escalator connecting 2/more flrs
C = 12,000; 24,000
| 2.5.1
103
```
Updated calculations about bowstring truss roofs have revealed that they may only support _% of the load they were originally designed to hold
A) 25
B) 40
C) 50
D) 75
```
B (3.3.3 C)
104
Not listed correctly for moving to ext attack? (4.2.5)
A) Heavy body of fire which has been burning out of control for 20 minutes or more, particularly in a large open floor area
B) Sagging or bulging walls. One cubic foot of brickwork weighs about 100 pounds
C) Inability to make successful headway against a medium or heavy fire condition within 20 minutes into the operation at the fire
D) Presence of heavy equipment or signs on the roof (static loads)
C= Not medium
105
incorrect Bowstring truss roof:
A) The IC may implement an interior attack after a risk assessment and if the operating force and interior operational time is kept to a minimum with the maximum amount of supervision.
B) Under no circumstances shall any FF operate on the roof of any building with a wooden, metal or combination bowstring truss design.
C) At vacant buildings with bowstring truss roof
construction, exterior operations should be the primary tactical consideration.
D) At large and/or advanced fires, or where the timber trusses or the underside of the roof are involved in fire, exterior operations should be the primary tactical consideration.
B Under no circumstances shall any member operate on the roof of any bldg involved in a content or structural fire with a wooden, metal or combo bowstring truss design. When there is a need for members to operate on a bowstring truss roof of a building not involved in fire, i.e. operating a hoseline from the roof into an adjoining fire building, the IC must take into account the past history of truss failure in these buildings, particularly if the building is vacant.
106
Correct Bowstring truss roofs:
A. Wood truss roof appear to snap & fail without warning, while steel trusses tend to stretch when losing strength
B. Steel truss roofs appear to snap & fail without warning while wood trusses tend to stretch when losing strength
C. Both wood & steel truss roofs appear to snap & fail without warning
D. Both wood & steel truss roofs tend to stretch when losing strength & start to sag or get spongy
A
107
Incorrect regarding roofs & fire travel
A. Inverted roofs may pitch from front to rear, front & rear to center, or front, rear & sides to center
B. How roof is pitched usually determines config of bldg & position of drainage facilities
C. Since most fire originate in rear of cellar where utilities, storage, & services are located, this is the area from which the fire usually extends to cockloft
D. Standard flat roof may have little or no pitch. If pitched it will be from front to rear
C 1st floor NOT cellar
108
Incorrect for 1st floor TP fires
A. Fires in TP generally originate in storage or utility area, which in most occupancies are the rearmost portion of the bldg
B. Probing ceiling area w/hook upon entering will give some indication of conditions in cockloft area
C. Vent of store at front by removal of show window shall be done if ordered by Lad Off in area to be vented
D. Verify fire origin was actually in store in which ops are in progress. This can only be assured by checking adj stores, which may be to side of rear
C IC must order for 1st fl and upper fl TP fires;
| Lad Off can order removal of show window for CELLAR fire in TP
109
```
All Hands fire 1 story TP- IC calls for add'l Truck. Who shuts down gas & electric supply in fire bldg
A. 1st Lad FE Team
B. 1st Lad OV & LCC
C. 2nd Lad FE Team
D. 2nd Lad OV & LCC
```
A
110
Most correct position for 1st AL LCC at a Cockloft fire in a 1 story TP, after placing AL away from bldg
A. Join 1st Lad FE Team
B. Proceed to rear to team up w/1st arriving OV
C. Proceed to roof to assist 1st Roof FF
D. Contact 1st Lad Off & be guided by his instructions
C Join FE team if it is a Store fire; Cockloft fires proceed to roof
111
Most correct position of 2nd AL LCC at a Cockloft fire in 1 story TP after placing AL away from bldg
A. Join 2nd FE
B. Proceed to rear to team up w/2nd OV
C. Proceed to roof to assist 2nd Roof FF
D. Contact 2nd Lad Off & be guided by his instructions
A Join 2nd FE Team "if not instructed otherwise" regardless if it's a store or cockloft fire
112
Sprinkler 2008 building code, which of the following statements is incorrect:
A. Occupancy within a building in which the area exceeds 7,500 sq ft needs a sprinkler
B. An area of any size located 2 stories above grade needs a sprinkler
C. Occupancy within a building of any size needs a sprinkler in a high rise building
D. Area of any size contains an unenclosed stair or escalator connecting two or more floors
B An area of any size is located 3 stories above grade 2.5.1
113
```
Automatic sprinklers are req'd in which:
A. 200 X 50 bldg built under 1938 code
B. 40 X 200 bldg built under 1968 code
C. 100 X 100 bldg built under 2008 code
D. 80 X 100 individual occupancy within a bldg built under 2008 code
```
B & D
1938 Code Area exceeding 10,000 square feet.
1968 Code Area exceeding 7,500 square feet.
2008 Code-Group M-Mercantile FULL bldg -Area exceeding 12,000 sq ft OR the combined area on all flrs including mezzanines exceeds 24,000 sq ft
Storage of merchandise is in high-piled racks
or rack storage arrays. Occupancy in TP over 7500 sq ft
114
Which member is in the proper position at a taxpayer fire?
A. 1st OV at a cellar fire forces the rear door and teams up with the 2nd OV to search paying particular attention to the rear of the cellar
B. 1st due LCC at a store fire goes to the roof
C. 1st LCC shuts down the utilities at a store fire
D. 2nd due OV shall go to the roof at store fires when not needed by the 1st OV in the rear.
D
A. Rear of 1st floor. Taxpayers 8.2.2 3c
B. Join the forcible entry team. If fire extends to the cockloft, proceed to the roof to assist roof firefighter.
C. 1st Ladder inside team. Tax 8.2.2 AF D. Tax 8.3.3 B 3b
115
Which of the following is NOT a correct action by the 2nd due Engine at a cockloft fire in a taxpayer? (7.3.5)
A) Assist the 1st engine with the 1st line
B) Stretch a line into another seriously exposed building and operating into the cockloft to confine and extinguish the fire, when conditions permit
C) Ensure the sprinkler system is supplied
D) At times, skipping stores when stretching a line to confine a cockloft fire
C - 3rd due now ensures for all taxpayer fires
116
Bowstring truss- IC may implement interior attack after risk assessment based on (incorrect)
A. Current structural stability of bldg
B. Any suspected life hazard
C. Size and location of fire
D. Verification of safe access to fire area
B Known life hazard
117
Correct for TP fires
A. All horizontal & vertical ventilation must be controlled, communicated, & coordinated by 1st Lad Off
B. Vent at roof & FE at street level must be coordinated to help assure prevention of backdraft & quick ext of fire
C. If roof requires cutting, cut early while it's still strong & fire extension is limited
D. Store windows should be removed entirely when necessary for effective interior ops
B C D
A- initial vertical vent
118
Incorrect factors influencing severity of backdraft
A. Type of gases, temperature, pressure, & make up
B. Size & location of areas involved
C. Type & size of openings made by FD
D. Proximity of openings in relation to HVAC
E. amount of turbulence in blog caused by direction & velocity of wind & hose streams directed in bldg
D relation to fire location
119
Second Eng at a store fire in a one story taxpayer. 1st Eng has stretched 7 lengths of 2 1/2" hose to the rear of the store. Correct order to give _
A: Stretch a second line, after supplying the sprinkler to the most severe exposure.
B: Assist the first arriving engine with the first line.
C: Ensure the sprinkler system is supplied.
D: Position for use of the deckpipe.
B
Taxpayers sec. 7.3.5 A
A. Assist first engine with initial line, then supply the sprinkler system. When staffing and conditions permit, stretch a line to backup first engine company's line.
C. 3rd Engine
