Flashcards in Vehicle Extrication Deck (462)
Traffic cones must be _____ in color ______ inches for daytime and low speed roadway.
_____ inches for night or high speed roadways
Cone spacing recommendations _______ ft.
5 directional movement you must consider during stabilization :
Horizontal - forward to rear
Vertical - Up and down
Roll - Side to side
Pitch - front goes down, rear comes up
Yaw - Twists or turns
5 box cribbing configurations:
2 piece layer crosstie
3 piece layer crosstie
** 2 piece, 3 piece, crosstie platform are most commonly used
Not all wood is good for cribbing. ______ and _____ are commonly used.
Hardwoods such as _____ is strong but tends to crack under stress.
*** Primary concern is the measurement of applied stress
Southern Yellow pine or Douglas fur
(load bearing capacity 6ooo lbs pg 176)
* wood is considered elastic
The max stress a board can be subjected to without exceeding the elastic range or proportional limit is known as its ________.
Fiber stress at proportional limit rating ( FSPL)
Most basic tool for stabilization:
Made from wood composite or steel
4x4 are cut at various lengths mostly ______ to ______ inches and _____ to _____ feet or longer.
18 to 20 inches
3 to 6 feet or longer
________, _________, and ________ of vehicles after a collision can create challenges for rescuers.
Always approach helicopter from the _______ side.
Approach in a _______ position.
Main rotor blade can dip as low as:
4 ft off the ground
Fixed wing transportt is usually for ______ and for distances greater than _______ to _______
100 to 150 miles
DOT defines Haz Mat as :
EPA defines HazMat as :
(enviromental protection agency)
Any substance or material in any form or quantity that poses a risk when transport in commerce
Any chemical that, if released into the environment, could be potentially harmful to the public health or welfare.
Never assume a line is dead place cones, snap light or scene tape around it.
Utility companies are programmed to energize the line several times to determine where there is break in the line
**** Never attempt to throw anything over a down lone to contain or move it
* Apparatus should be placed a minimum of ________ poles away from a down line or a line with items hanging on them
More than _______ vehicle in the US use LPG (propane) most of which have spark ignition engines that can operate on propane or gasoline
The point at which all the weight of an object appears to be concentrated
Center of gravity
A review of the incident and a way to constructively examine the positives and negatives of the incident
" What if this happens again?"
Post incident analysis
3 basic strategies to remove a pt from under a load:
Raise load by lifting
Stabilize the load and lower the ground (dig)
Combine the two approaches
Extrication activities need to happen:
Quickly and methodically
When a person is trapped under a load for long time and muscles cells die, producing toxin that when pressure is released reach the heart
Crush injury syndrome
* One of the more critical injuries of traumas
The compression of nerves, blood vessels, and muscles inside and enclosed space within the body:
* Tissue death due to lack of o2
Farm machine can often be _____ more easily than they can be cut
You are allowed to ________ mechanism that has entrapped a pt
Allows a tractor to traverse uneven ground while preventing the front end from lifting off the ground
All tractor wheels turn:
Allows rescuers to create an anchor point for rigging and stabilization where no other anchors are available.
Picket anchor systems
The most critical skill a rescuer can master is:
3 layer instead of 2 layer cribbing provides 2 1/4 times the lifting capacity
Turning off a trailer ignition may not _______
Kill electrical power
*Shutting electrical current off will stop a gas engine. It will not stop a diesel engine
Crush victim should be infused with fluids for _______ before extricated from machinery
* Allow bystanders to stay at a safe distance
Hazards at the scene of a tractor overturn include:
Most states have no __________ when driving tractors