Chapter 14 Flashcards
Teams should be deployed to conduct a quick search of both sides of the stream.
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When a victim is located, or level 2 rescuers are conducting entry operations, one or more spotters should be assigned to an area upstream of the operation to monitor the activity.
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The force of water on a rope system must be considered and accommodated in a swift water environment.
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Upstream spotters and downstream safeties work together to locate and rescue people in the water, downstream safeties work in pairs, on each side of the waterway, to increase the likelihood of success.
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Swift water rescues occur in water that is moving in excess of 1 knot.
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A critical aspect of developing an IAP is the completion of a risk benefit analysis that should be conducted prior to deploying rescuers into a hazardous environment.
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The area of operations should extend to the furthest point downstream that a victim is likely to be found based on the speed of the water flow and the length of time that the victim has been in the water.
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The determination of water speed should be taken into account when establishing or modifying the area of operations.
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Timing a floating object in the water over a known distance can be used to roughly calculate the velocity of water in a stream.
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Hydrodynamics - the study of liquids in motion
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Underestimating the hydrodynamic forces present at the scene of a swift water rescue can have deadly consequences.
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As a general rule, decreases in water temperature increase the speed with which an unprotected victim is incapacitated.
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The participation of level 1 rescuers in swift water rescue incidents is limited to shore based activities, either in conducting search and rescue operations or in supporting level 2 rescuers.
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The priority of a level 1 rescuer who is in the water is to return to the shore as soon as possible.
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A defensive swimming posture includes the feet pointing downstream and the head up to spot any hazards.
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