Ch.10 Flashcards
Terminology used to describe the required functions, the fire apparatus, the tools and equipment carried on it, and mostly important, the number of trained personnel:
Company
The basic building block of every fire department:
Engine Company
What is the engine companies primary function:
supply the water to extinguish the fire
Minimum requirements for a pumper fire apparatus from NFPA 1901, Class A Pumper:
- min water tank 300 gallons
- at least 30 cuft. for 2 1/2” compartment
- 2 compartments of at least 3.5 cuft. for 1 1/2” or larger
- Minimum pump size of 750 GPM
Size up starts with what:
receipt of the alarm, or before the alarm comes in
Sends pre-entered building data over the mobile data computer (MDC) while crews are en route to an alarm:
Critical Information Dispatch System (CIDS)
_______ water is useful for some vehicle fires, some small brush fires, and other small, outside fires.
Booster Tank
Water sources such as lakes, pools, or ponds:
Static sources
Engine Companies have 3 options when laying hose lines to move water:
- Forward Lay
- Reverse Lay
- Split Lay
(Referred to as a driveway lay) combination of two methods; engine drops supply line at corner of driveway
Split Lay
In areas where hydrants are not readily available and a static source is being used, the options available:
- drafting
- Water tender shuttles
Installed by developers to meet various flow requirements. Are essentially hard suction tubes that are piped into nearby static water source:
Dry Hydrants
Water Tenders may carry water in amounts from _____ to ______.
1000 to 8000 gallons
Tender Delivery Rate (TDR):
-Flow requirements are calculated
-Time it takes tender to may entire cycle in calculated
(The cycle is time it takes to dump, return to static source, fill with water, and return to scene.)
-Allows IC to determine how many similar-sized tenders are needed.
Tenders with ______ affect the rotation in terms of refill and offload times.
differing capacities
1 1/2” or 1 3/4” hose line can be handled easily by ____ fire fighters; make it the line of choice.
2
1 3/4” hose line with solid-bore nozzle is capable of flowing approx. _____ GPM at a nozzle pressure of 50 psi.
180 GPM
2 1/2” hose line operated at 50 psi nozzle pressure is capable of flowing approx. ______, almost double
320 GPM
________ starts with the information provided on receipt of the alarm.
Locating the fire
3 basic steps in fire suppression:
- Locating
- Confining
- Extinguishing
A ________ fire is one that displays high smoke volume and pressure (incomplete combustion).
vent-controlled
A ________ fire is one that is growth limited by the supply of combustibles. Fully involved fires.
fuel-controlled
2nd step in fire suppression- Action taken to prevent fire spread from one room to another or building to another:
Confining
*ex. closing a door
Tool that can be used to draw fire, heat, and smoke up and out of the fire building:
Vertical Ventilation
Final Step in fire suppression: Includes putting out all visible flames and any hidden pockets of fire.
Extinguishment
The search for concealed fire areas and eventual total extinguishment is called ___________
Overhauling
2 important basic functions of an engine company:
- Getting a hose line in operation
- Obtaining an adequate water supply
Proper operation of the hose line is the _________ responsibility.
Officers
Ideally the officer should be in a position that allows him to:
- ensure safety of company
- direct fire control activities
- provide updates to command
- communicate with other fire companies
Before entering a door to a fire area, all fire fighters should remain down and low and should be:
on the same side of the hose line and on the same side of the doorway opening
Fire personnel should regard every opening they make, or that has occurred by fire growth, as a _______
vent opening
Never advance into a fire apartment without a _________
charged hose line
The nozzle should be opened and operated in a:
- clockwise direction
- Z pattern
Operating a nozzle in a Z pattern sweeps:
- Ceiling Area
- Room Area
- Floor Area
Unless directing the stream on a localized fire, the hose line should be operated _______________
Overhead and In Front of the nozzle team
Smoke, heat, and fire conditions are minimal:
Incipient Stage
The _______ fire produces tremendous amounts of heat and heavy fire conditions.
Free-burning stage
In the free burning stage, rooms adjacent to the fire area may be at the point of ______, which is the third stage.
Flashover (third stage)
The final stage of fire when the fire has passed through the stages and due to lack of oxygen, the fire burns itself out, yet dangerously high levels of heat and flammable gases remain.
Smoldering or Decay stage
In the Smoldering or Decay stage, ________ must precede forcible entry.
Vertical ventilation
Firefighters must view smoke as _______
Fuel
When the tactical method of extinguishment involves ______ , ventilation is critical and proper timing is needed.
fog nozzle
2 basic TYPES of Ventilation:
2 basic METHODS of Ventilation:
Types: Vertical and Horizontal Ventilation
Methods: Natural and Mechanical Ventilation
There are 3 basic ways to get to a Roof:
- an adjoining building
- an aerial or ladder tower
- Rear fire escape
What usually dictates the best way to get to the roof:
The type of building
In large multiple dwellings or apartment houses, the preferred method of getting to the roof is via ______________
- an adjoining building
- an aerial or tower ladder
- Rear fire escape
____________ stop at the top floor and do not go all the way to the roof. The preferred choice in this situation would be using an adjacent building.
Front fire escapes or fire escapes facing a street
If the fire building is ISOLATED, then _______ is the preferred method of getting to the roof.
Aerial or tower ladder
Getting to the rear of a large building to use the fire escape is both difficult and time-consuming, making it ____________
The least preferred method