Water Supply for Suburban and Rural Firefighting Flashcards
What are the three types of operations?
Nursing, Relay, or Shuttle
Who is the Dump Site Unit Leader? (DSUL)
The OIC from the 3rd engine. They will manage water supply operations until the arrival of an additional command officer.
This procedure is used during initial fire attack and may be used in place of a dump site operation when the DSUL or WSGS deems it necessary.
Nursing Operations
Starting pressure for a Siamese at bottom of a driveway
70psi
Fires occur in rural and non hydrant areas that account for significant fire losses. These fires typically occur where hydrants are more than?
2,000 feet
The goals of rural water supply operations.
Rapid- (quickly deployed, supporting the initial attack).
Efficient (providing maximum GPM/fire flow based on available water)
Expandable (enabling the water supply to increase as needed)
Uninterrupted (providing a continuous flow for the duration of the fire)
First arriving engine company are responsible for?
Determining the water supply plan enroute to the call using the map book or preplan.
Tanker flow calculations
Tanker = (capacity - 20%) / round trip time
A tanker task force will be dispatched on all structure fire incidents in?
non hydrant areas
Tanker Task Force
One Engine
Three tankers
One command officer
Nursing Operations: First Tanker
First tanker is nurse tanker. The second arriving engine will complete the setup of nursing operations.
Nursing Operations: Third engine
Third engine will assume the role of the DSUL. The DSUL will manage the responsibilities of the WSGS until relieved.
Nursing Operations: Fifth Engine
Arrive at the fill site and the officer will assume FSUL position under the WSGS.
What is the first tanker on a shuttle operation?
Nurse Tanker
Can engines be used on a shuttle operation?
Yes, only if needed.
What is fifth engine on shuttle operations?
Fill site engine
Relay operations with 4 inch hose are feasible distances over?
1 mile
In relay operations, what is the third engine officers responsibility?
WSGS until relieved
Is a tanker task force necessary in a relay operations?
A tanker task force needs to be dispatched to these incidents to ensure an adequate water supply.
What is the maximum flow for a low-level strainer? It can take water down to what level?
750 GPMs; 2 inches
Low-profile jet siphon strainer uses what hose? and can flow a minimum of what gpms?
1 3/4’’; 500 gpms but varies by manufacturer.
Non-hydrant full box assignment
5- Engines
3- Tankers
2- Trucks
1- Rescue
1- Ems Unit
2- Command officers
1- Ems supervisor
1- Safety officer
Rural water supply fires occur typically where hydrants in excess of_________ft from the occupancy on fire
2000
Short driveway less than________ft; long driveway greater than________ft.
200; 2000
Which engine is responsible for setting up and maintaining the fill site?
5th
Fill site engines with electronic governor controls draft in_________mode. If not, the system will think the pump is cavitating.
RPM
Traffic vest and pfd’s within______ft of water?
10
If the tanker is dispatched without an engine, the driver is encouraged to?
bring a FF
Dry hydrants should be back flushed and tested every______months; or back flushed______
6 ; before each use
The jet siphon moves water between tank with the venturi effect at________gpm
50-60
A floating dock strainer is used for what type of water source?
Static
