Vehicle Extrication Flashcards
What’s the difference between manually and powered hydraulics?
Manually is hand powered and powered uses hydronic fluids through high pressure hoses
What are two ways rescue tools can be operated?
Manually or hydraulic
T/F
Can potable or carried tools be minted on a vehicle and powered by a hose reel line
True
What are the 4 types of powered hydraulic tools?
Spreaders
Shears
Combination
Extension rams
What was the first tool a available to fore and rescue?
Power spreaders
Spreaders are used for what?
Pushing and pulling
Produces tons of force spreads 32 inches
Shears are used for what?
Cutting
Tons of cutting force
7inches
Combination are used for what?
Pulling and pushing
Capabilities are less
Extension rams are used for what?
Primarily pushing
Closed it’s 3 ft open 5 ft
Tons of pushing force
Closing force is half that of the opening
What are two types of manual hydraulic tools?
Porta power
Hydraulic jack
Both are more time consuming
Hydraulic jacks are used for what?
Heavy lifting for shoring and stabilization lifts 20 tons
What is cribbing
Most common method for stabilizing objects
Wood and plastic
Common sizes 2x4 4x4 6x6
Why is plastic better than solid wood?
Doesn’t absorb fuel and oil and lasts longer
What are pneumatic tools?
Compressed air tools
Such as air chisels, air hammers, impact hammers
90- 250psi
Three most common drives for winches
Electric
Hydraulic
Power take off
Come alongs sizes
1 to 10 tons
What kind of chains are used for come alongs and winches?
Alloy steel
What are three types of pneumatic lifting bags?
High
Medium
Low
High pressure or small bags
20inches
Sizes 6x6 to 36x36
Med and low pressure or big bags
Mostly for lift or stabilization
Lift 6ft
What is a major safety rule for operating the air bags?
Don’t allow contact with materials hotter than 220 degrees
What is the rule for lifting?
Lift and inch
Crib and inch
What is the majority of rescue incidents?
Vehicle extractions
Describe block and tackle
Block- wooden or metal frame for sheaves
Sheaves- pulleys
Tackle- the rope
Who is primary for scene size up?
First responders
What are important questions for scene size up?
What are the traffic hazards and what can be done to control them? How many and type of vehicles? Vehicle positioning? How many victims and triage? Fire? Hazmat? Utilities? Do we need additional resources?
How many rescuers size up a vehicle?
One per unit
There is an inner circle and outer circle who should check the inner?
Someone first aide or higher
How do you prevent horizontal motion?
Chocks
How do you avoid vertical motion?
Jacks, bags, cribbing
When cribbing what is the most common method?
Box formation
What are 3 ways to gain acess to a vehicle?
Normal means
Window
Cutting
What are some additional hazards?
Oil
Fuel
High pressures tires
Trunk content
Air bags deploy at what speed?
200 mph
Electrically operated restraints can last on reserve energy for how long?
30 mins
Packaging means?
Wounds have been dressed
Fractures splinted
Body immobilized
Laminated safety glass is made of what?
Two sheets of glass bonded to a sheet of plastic
Where is tempered glass is located?
Side windows and back window
Designed to shatter
T/f
Always remove the front windshield when possible
False
Supports the structure
Where are the following posts?
A B C
A- post front post
B- nearest posts from front doors
C- last posts
