Flashcards in Chapter 12: Special Extrication Situations Deck (122)
When faced with a vehicle in a structure, rescuers must first check ____, then ____.
* the condition of the structure
* the condition of the vehicles
General term used for lengths or timber, screw jacks, hydraulic and pneumatic jacks, and other devices that can be used as temporary support for formwork or structural components or used to hold sheeting against trench walls. Individual supports are called shores, cross braces, and struts. Commonly used in conjunction with cribbing.
If it is determined that the structure has been damaged to the point that a collapse is likely, what should happen next?
a structural collapse rescue team or other qualified personnel should start shoring the structure.
Rescuers should request ____ whenever structural stability is in question.
the response of the local building department
Once an unstable structure has been shored, rescuers should ____
begin the process of assessing the condition of the vehicle.
Before stabilizing a vehicle in a structure, after the structure has been shored, rescuers should ____
conduct an assessment of the trapped victim(s)
With a vehicle trapped in a building, rescuers should consider ____ only in the most extreme situations.
pulling the vehicle out of the structure.
While extricating victims from vehicles in a structure, rescuers must be sure to avoid ____
disturbing or dislodging any of the shoring that supports the structure.
When working inside a structure to extricate a victim, rescuers should consider ____ and ____ when using gas powered equipment.
* atmospheric monitoring
A submerged vehicle will have ____, while a partially submerged vehicle would have ____.
* its passenger compartment totally under water
* a portion of the passenger compartment above the water.
Rescuers should determine the submersion of a vehicle based on ____.
the bottom of the waterway. Partially submerged vehicles may be floating, only to become submerged.
If a vehicle comes to rest in a body of water, rescue personnel should ask:
Can rescue personnel perform extrication operations without having to enter the water?
Situations where the operation is most certainly a body recovery and not a rescue.
* if the vehicle fell from a great height into the water.
* if the vehicle occupants have been submerged for more than an hour
In most cases, there is little that anyone can do to stabilize a vehicle that is immersed in water except ____
secure the vehicle to shore with rope, chain, cable, or webbing attached to a secure anchor point.
After a vehicle has been pulled from a body of water, they can use the same extrication process as in any other vehicle incident with that type of vehicle, with the following exceptions:
* Electrically powered extrication tools and equipment must be used only where contact with water is not likely
* Rescuers must secure the vehicle with a rope, chain, cable, or webbing attached to a secure anchor point to prevent rescue operations from causing the vehicle to roll back into the water.
When responding to hanging vehicle incidents, rescuers should first ask:
Can the trapped victims be reached from below with standard fire service ground ladders or aerial devices?
When devising a plan to stabilize the vehicle rescuers must consider the following:
* Type and weight of vehicle involved
* Height above the surface
* Likelihood of the vehicle falling
Rescuers may need to secure the hanging vehicle to ____ with as many ____, ____, or ____ as they can safely and quickly in order to provide initial stabilization.
* anchor points
* ropes, chains, or pieces of webbing
With hanging vehicle incidents rescuers should provide each victim ____
with fall protection.
RV incidents may put rescue personnel and other at greater risk if ____
liquefied petroleum gas or other fuel tank or associated piping has been damaged and is leaking.
The structures of most RV's make them highly susceptible to ____ but relatively ____
* easy to access
Most RV's are constructed on a chassis with ____ and built more like ____ than highway vehicles.
* rigid frame
* mobile homes
Many extrication tools cannot ____ the materials used in construction of agricultural vehicles, so rescuers may need to ____.
* disassemble the. vehicles.
What are the two broad classes of off-road tractors?
* wheeled tractors
* tracked vehicles
Typical wheeled tractors have ____ rear wheels (normally up to ____) and ____ front wheels (normally up to ____) with ____ tires.
* large (50)
* smaller ( 38)
All wheel drive tractors have heavy traction treads and because they are relatively light in weight and are often used to pull heavy loads, ____ are sometimes bolted to the wheels, or the tires are filled to approximately ____ with a solution of ____ or ____ and water to improve traction.
* large cast iron weights
* calcium chloride
* ethylene glycol
Regardless of their configuration, all individual wheeled tractors tend to ____ that makes them more prone to ____ than other vehicles.
* have a high profile
* rolling over
Wheeled tractors relatively narrow track (horizontal distance from ____ to ____ inches between wheels on the same axle) and their high ground clearance make them susceptible to ____.
* 60 to 100 inches
* lateral rollovers.
OSHA requires that manufacturers equip all wheeled tractors manufactured after October 1976 with ____ and ____.
* seat belts
* roll bars