Chapter 9 Flashcards
Can range from 1 to 8 stories spread over hundreds of feet or a city block
Commercial building or warehouse
Deteriorating conditions that could signal the need for withdrawal of firefighters and a switch to a defensive operations include
- A large body of fire that is not diminishing with attacking hose lines
- Water from the hose line turning to steam with no obvious effect on the fire
- Continued or worsening high heat and/or heavy smoke conditions
A sprinkler system can affect the fire in a variety of ways
- Immediate extinguishment
- Fire control
- Or hampering, with continued spread at floor level
A specific exposure concern should be for
Structures higher than the original fire building
In commercial structures ____ and ___ is a must, and close coordination must be maintained between line advancement and ventilation
Horizontal and vertical ventilation
Row of stores with parking in front
Strip mall
Strip malls are also referred to as
Strip stores
Taxpayers
Strip malls are commonly of
Frame, ordinary, or non combustible construction
Found in urban and suburban areas. Everyday merchandise consists of many flammable hazards
Enclosed shopping mall
Below grade garages can be a problem if an attempt to evacuate all the cars occurs at one time. A build up of ____ can develop
Carbon monoxide
Magnet or anchor stores are?
Large, established stores that a mall was built adjacent to or was incorporated in the construction
A 35,000 square foot modern supermarket will require ___ to ____ pounds of refrigerant
3,000 to 5,000
Coolant acts as an ___
An asphyxiant, displacing oxygen or creating a toxic atmosphere. Coolant release can hydrogenate an area, presenting flammable concerns
_____ is used in large refrigeration systems
Ammonia
Supermarkets usually have large loads on their roofs that can increase the potential for
Early roof collapse
The steam and smoke created by burning material and the partial extinguishment by the sprinklers will
Reduce visibility to zero
Lumberyards are often located adjacent to railroad sidings or location accessible to ships. If situated on waterways the blaze will require attack from the waterside. If adjacent to railroad sidings, the railroads must
Must be shut down to ensure firefighter safety
First arriving units at a fire involving a few piles or an involved shed of lumber must make an aggressive attack on the fire from the ______ side
Leeward
2 1/2 inch hose line minimum
A fast moving lumberyard fire must be fought from
The flanks of the fire
The aim when flanking a fire is to prevent further extension
In the initial stages, the fire can be fought on the leeward side to prevent extension. As the fire involves a larger area, it must be fought from the windward side or with master streams flanking the fire on the leeward side
Structures that are more than 75 feet tall
High rise building