Supplying Water
What type of environment are wet-barrel hydrants installed
Climates without prolonged periods of subfreezing weather
Used to quickly drain water from LDH hose before being repacked and stored
Large-diameter hose drainage roller
Working Line Drag
What is classified as a master stream
Discharges of 350 gpm and is fed by one or more 2.5 in or greater connected
Part of total water pressure that is lost while forcing water through pipes, fittings, fire hose, and adapters
Friction Loss
Examples of static water sources
Lakes; Ponds; Rivers; Swimming Pools; Portable Water Tanks
Tool used to prevent damage to fire hose when vehicles drive over it
Hose Bridges or hose ramps
When should you advance an uncharged hose line down stairs
When fire is very minor or not present
Which flows are characterized as a handline stream
40 gpm to 350 gpm
What causes water hammer
Which type of water source provides a consistent volume of water under constant pressure
Fire Hydrants
A fitting that connects hose couplings with similar thread and the same inside diameter
Adapters
How do you access fires beyond the reach of preconnected hoselines
Standpipe
Identify and describe two types of broken stream nozzles
Piercing nozzle; Cellar nozzle
When are master streams deployed
When fire is beyond the effectiveness of handlines or there is a need for hose streams in an area that is unsafe
Three components to water shuttle operations
Dump site at the fire; Fill site at the water source; Mobile water supply apparatus to haul water from fill site to dump site
When hose is deployed from the water source to the incident
Forward Lay
How do you avoid overloading a ladder when advancing hose
Only one person allowed on each section of the ladder
What determines the shape of the hose stream
The type of nozzle
List 5 instances it is okay to assign 1 firefighter to an attack line
Small ground cover fire; Vehicle fire; Rekindle during overhaul; Trash fire; Shed fire
Process for taking a hydrant out of service
Place "out-of-service" tag; notify fire station personnel; notify hydrant repair personnel
When hose is deployed from the incident to the water source
4 reasons to use an improvised standpipe
Construction; Demolition; Tampering; Natural Disasters
What are the five extinguishing properties of water
Readily available; Relatively inexpensive; Greater heat-absorbing capacity; Absorbs a large amount of heat; Can be applied in a variety of ways
The difference in elevation between the nozzle and the pumping apparatus causes
Elevation pressure