Inland Water Flashcards
(27 cards)
The aggregate temperature is obtained by adding what two things?
Ambient and water temperature
if the aggregate temperature is less than _____, the potential for hypothermia is greatly increased
140°F
Per the inland water rescue manual what are the three phases of readiness?
flood watch
Flood warning
Action phase
During a water rescue the situation report should include what four things?
Confirmation
Condition and number of victims
In on or under the water if possible
any single long whistle blast requires all personnel within the sound to do what?
Stop and look in the direction of the whistle
as a general rule it could require _____ personnel to affect a single person rescue from moving water during daylight hours
16 personnel
Active search and rescue operations should be done for victims that have been submerged for up to how long?
60 minutes
for immediate search of a submerged victim in shallow water utilize a __________.
Human/rescuer chain
what is considered the warm zone in a water rescue incident?
10 feet from the water edge
what feature is found downstream of a low head, dam type hydraulic? It marks the area where the current splits in direction, the lighter aerated water upstream moves back towards the hydraulic while the darker water flows down.
Boil line
what is a confluence wave?
A confluence wave is formed when two separate flows of water meat, creating a disturbance in the water
during a water rescue, what is three blast from the whistle mean?
Look down stream
if you need to signal there is trouble when operating on an inland water rescue how would you blow your whistle?
Multiple blast from the whistle signifies trouble
what is the process by which a boat moves across the river without moving downstream?
ferry
as water passes along the sides of the shore he creates circular swirls, resulting from friction known as…?
Helical flow
what is an appropriate ferry angle during a water rescue?
45°
when water meets an object and pushes water above the surface, and then off to either side, often creating an eddie downstream is known as a what?
pillow
when should PFDs be accounted for and inspected?
Accounted for daily and inspected once a month
during an inland water rescue, what does one whistle blast mean?
Stop and look at person
during an inland water rescue, what does two blast from a whistle mean?
Look up stream
what force will carry away a vehicle in fast moving water?
Buoyancy force
if a rescuer tapped themselves on the head, what does this mean?
They are OK
What is a safe swimming position?
Swimmer is on their back with feet at the surface and pointing downstream
a blank stare with associated inability to follow commands is known as what?
Counter panic
