High Rise Flashcards
Composite metal floor decking is commonly referred to as what due to the popularity of a widely used product brand name.
Q decking
P. 5
Traditional concrete has a density range of ________ per cubic foot (pcf).
150
P. 10
Research has shown that under fire conditions, lightweight concrete failure occurs at 80% of the designed load after _________ minutes.
45
P. 11
The extensive use of sprinkler systems in the NOVA region minimizes the threat of large-scale fires. However, concern exists for those situations where the sprinklers fail to control the fire or are turned off. Contents of these buildings have a rate of heat release that can allow a fire to double in size every ________?
90 seconds
P. 31
Officers should consider _________ in advanced fires or fires in the upper floors of residential high-rises.
2 1/2” lines
P. 39
The fire load in commercial occupancies is considered moderate and requires a fire flow of ________ gpm per 100 sqft of involved area.
20
P. 39
The _______ due engine, should establish the base area.
Sixth
P. 54
________ refers to the area used for assembling resources close to operations on the fire floor, ideally two floors below.
Staging
P. 58
Vertical ventilation using ________ represents the least desirable option.
Elevator shafts
P. 62
Command should establish a search and evacuation branch or group if more than _______ above the fire still contain building occupants.
Two floors
P. 63
Some government buildings and merchant buildings may have reinforced this?
Drywall
P. 8
What season is stack effect more noticeable due to the considerable differences between inside and outside temperatures?
Winter
P. 28
Contents of high-rise buildings have a rate of heat released that can allow a fire to double in size every ______ seconds?
90
P. 31
In a wind driven fire, the first due truck and/or rescue squad must establish ________ area by forcing entry into an adjoinging apartment
Safe Haven / Refuge
P.31
What shall an engine company do prior to charging the hose line and open the door to the floor?
Make sure the rest of the stairwell is cleared.
P. 47
A base is established by the 6th enigne or first engine on the second alarm. Who becomes the Base Officer?
Engine Driver
P. 54/58
Staging is set up _____ Floors below the fire floor.
2
P. 58
A fire stream in excess of 350 GPM that is deployed from the tip of an aerial device.
Elevated Master Stream
How many basic ventilation techniques are there for high-rise operations?
3
What is the least desirable option for verticle ventilation?
Elevator Shaft
Who shall check HVAC settings prior to ascending to the fire floor?
First due truck officer
Drop ceilings are often used to hide wires and HVAC Ducts, but can create these
Void spaces
what is a concern with a curtain wall on the exterior of the building?
gaps between floor and exterior wall
if hallways are sectioned off by the use of fire doors, you will typically find a stairwell and ___________ for each area or section
Standpipes
what year was the Virginia Uniform Statewide Building Code modified to require a fire control room
1976
Along with stairwell riser, what else may be found in the stairwell for buildings constructed after 1976
Sprinkler control valve
An elevator that bypasses a portion of the building via a blind shaft and is found in many hi-rises in known as?
express elevator
what is a clear avenue for a rapid collection of smoke and super-heated gases?
plenum spaces
a report of a vehicle fire in a parking garage attached to a high-rise should be treated as?
High-Rise Fire
portable ground ladders are found in varying lengths. Most straight ladders are 16’ and 20’ ladders. Most extension ladders run from ______-foot to 40-foot
24
Unprotected stairs in a multistory building that connects two or more floors for the same occupant space
Access Stairs
Light-colored lazy-moving smoke typically generated by a sprinkler response to a small fire is called what?
Cold smoke
A building that the highest occupied story is located more then 75 feet above the lowest level of the fire department vehicle access
Highrise Building
This occurs when air moves downward inside a building due to the temperature difference between the air inside and outside
Reverse stack effect
This occurs when air moves upward inside a tightly sealed building due to the difference in temperature inside and outside
Stack Effect
This architectural feature makes it difficult to control smoke conditions because of the simultaneous exposer of smoke and fire conditions to many floors
Atrium
Buildings constructed prior to ______ code requirements may lack sprinkler systems ,fire control rooms ,modern fire alarms,or elevator control systems
1976
Fire walls typically have a minimum _____ fire-resistance rating
2 Hour
Due to increased security concerns,drywall may be reinforced with a encased layer of?
Wire mesh or Lexan Polycarbonate
Lightweight concrete failure occurs at 80% of the designed load after how many minutes of fire exposure?
45 minutes
Highrise building windows can be made from what ?
Plate Glass,Tempered glass,Lexan Polycarbonate
Stairwell to hall doors swing in what direction?
Into the stairwell
Buildings with fixed windows should have designated _______ _______
Breakable windows
How will breakable windows be marked
Maltese cross /Fire Helmetin the lower corner
What does the presence of a security gate in the stairway denote?
Lowest level terminating at an exterior entrance
Where is the machinery for a Otis Gen 2 elevator mounted ?
Top of the car
This operation mode allows the elevator car doors to open automatically when the car arrives at the specified floor
Independent service
What can occur in any enclosed area within a structure
Backdraft
What must be done to a burning object in a chute that is involved in fire ?
A heavy object must be dropped on it from above to dislodge it
Buildings under construction must have a riser how many floors below the top- most finished floor
Two floors
In 1976 building code required a fire control room and buildings with occupied floors more than ___ feet.
75
Generally characterized, a highrise building is greater than how many stories?
6 or 7
The presence of a scupper on a highrise will indicate what?
the roofline
Access or convience stairs are ____?
stairs leading from floor to floor within a single occupant space
Buildings constructed after 1976 stairways should contain what?
hardwired communications to the fire control room
Highrise buildings constructed after 1976 contain ______ .
automatic sprinklers
Hydrants installed after 1976 should be located within how many feet of the standpipe?
100 feet
A blind shaft elevator is considered what type of elevator?
express
Indication of the blind shaft elevator control panel can be indicated by ____.
lack of call buttons for floors
In a wind drive highrise fire, what unit establishes the safe haven area?
first due truck or rescue
Fire resistance construction in highrises can limit the spread of fire but contents of these buildings have a rate of heat release that allows fire to double in size every _____.
90 seconds
Mercantile style highrises represent a significant concern for buyer extension on floors located _____ .
lower 2 or 3 floors
The fire load in residential occupancies requires a fire flow of ____ GPM per ____ square feet in volved.
10 and 100
What is the minimum initial alarm assignment for a highrise fire?
5 engines, 2 trucks, 1 rescue squad, 1 EMS unit, 2 battalion chiefs, 1 EMS supervisor
Units should utilize stairwell access up to what floor before using an elevator?
6th
After conferring with the IC, the 5th engine then reports to ____ area to assume ____ control.
lobby, lobby
The 6th due engine should estabilsh what area?
base
A midrise building is considered how many stories that are less than how many feet?
3-6 stories, 75 ft.
The minimum initial alarm assignment for a midrise is what?
5 engines, 2 trucks, 1 rescue squad, 1 EMS unit, 2 battalion cheifs, 1 command aid, and 1 EMS supervisor
In 1976, the Virginia Uniform Statewide Building Code required a fire control room in buildings with occupied floors located at what height?
75 feet above the lowest level of fire department vehicle access
With a few exceptions, all NOVA high-rise buildings have at least how many exits from each floor?
Two
What is the minimum fire rating time for fire walls?
2-hour fire-resistive rating
What distance gap can there between be a curtain wall and the floor they are attached to?
6” to 12”
Studies have shown lightweight concrete develop thermal cracks in as little as how many minutes of fire exposure?
14 - 16 minutes
High-rise buildings with fixed windows may have window panes etched with what symbol to indicate they are breakable?
Maltese cross or fire helmet
What type of stairs lead to confusion as they don’t lead to every floor and typically lead to every other floor?
Scissor stairs
When you encounter a security gate in the stairwell, what does that indicate?
It’s the last floor with an exterior entrance
Pressure-reducing valves will limit pressure to a maximum of how many psi?
175 psi
Can an engine driver bypass an unusable FDC and directly connect to the ground-level standpipe riser, if it has a pressure-reducing valve?
No, it will be ineffective due to the one-way valve
What is the natural movement of air within a tightly sealed high-rise; it results from the temperature difference between the air inside and the air outside; smoke rises until the temperature balances, at which point the smoke begins to settle or stratify; this occurs most noticeably in winter?
Stack Effect
Wind-driven fires have been documented as low as what story on a high-rise?
Third floor
Hazardous wind-driven conditions can occur with wind speeds as low as?
10-20 mph
When sprinklers fail in a high-rise, the contents of these buildings have a rate of heat release that can allow fire to double every?
90 seconds
What is the required fire flow for commercial high-rise buildings as their fire load is considered moderate?
20gpm per 100 sqft.
What is the fifth-due engines primary responsibility on a high-rise fire?
Lobby control
Where does the fourth-due engine set up I-RIT?
One floor below the fire
Who will serve as the initial person coordinating base activities?
Driver of first engine arriving at base
Where is staging set up on a high-rise fire?
Two floors below the fire
Virginia Uniform Building Code requires a fire control room in building with occupied floors located more than how many feet above the lowest level of fire department vehile access?
75 feet
How long is the minimum fire resistance rating on fire walls in enclosed high rise stairways?
2 hours
