TB 99 - River Rescue Flashcards
(53 cards)
On an annual basis in the United States, approximately how many people die in water related emergencies?
6000 to 9000
What are the 3 main waterways into which hundreds of miles of tributaries feed?
Los Angeles rivers
San Gabriel rivers
Rio Hondo rivers
How many of the 6000 to 9000 deaths annually are “would be” rescuers?
1/3
Within the Los Angeles county on an annual basis there are an average of how many swift eater rescue incidents?
60
Rescue efforts are divided into what 2 arenas?
Land based (first responders) In water or contact (swift water teams)
Primary swift water rescue options for all levels are?
Communication
Floatation
First responder swift water rescue options are?
Reach
Throw
Swift water team options and specially trained personnel options for swift water rescue are?
Row
Go
Tow
Helo
Once a victim is located, communicate to them to assume a what swimming technique such as floating on their back with feet facing downstream?
Defensive
The victim shall utilize what “angle” by angling their body 45 degrees against current with head pointing towards the “target” river bank?
Ferry angle
Due to the fact that most victims do not have a floatation device, they are usually weakened by what?
Hypothermia and fatigue
What provides a more visible “marker” for rescuers?
Floatation devices
Which “method” of rescue include any use of a rescue tool which forms an extension of the rescuer such as pike poles, rubbish hooks, small tools or a tensioned diagonal or fire hose?
Reach method
An option which has proven to be extremely versatile in the river rescue setting is what such as an inflated fire hose or tensioned line?
Tension diagonal line
The tensioned diagonal line may be used for gaining access to victims from which sides of the river?
Mid stream or on the opposite bank
The tension diagonal is generally a rope which is tensioned across a channel downstream no more than what degree angle?
45 degrees
If angle in tension diagonal is set correctly a simple mechanical advantage system for tensioning is sufficient such as what?
3:1 system or truckers hitch
The ideal height above the water for the tension diagonal is what?
Just off the water
The rescue net is controlled by how many tag lines clipped to all corners?
4 tag lines
The 2 top and 2 bottom tag lines for the rescue net are used to control what?
Top 2: move net laterally over water
Bottom 2: control net in water
For the rescue net, from the ready position the net is dropped into the water on mutual command when the victim is still how many seconds upstream?
5 to 10 seconds
For the rescue net, once the victim contacts what of the submerged net, the “bottom side” tag line members shall maintain tension?
“Envelope”
The preferred hose line for an inflate fire hose is 50 to 100 feet (max) of what size?
2 1/2”
The female end of the 2 1/2” should be plugged or capped, if capping it utilize what fittings?
Double male with cap
