Chapter 10 Scene Lighting, Rescue Tools, Vehicle Extrication, and Tech Rescue Flashcards
When dealing with scene lighting equipment a firefighter I should be able to ……….and a fire fighter II should be able too………
Operate it, Maintain it.
The most common power source used by emergency service personal.
Generators
A portable generator typically has what type of outlets.
110 volt and 220 volt
A vehicle mounted generator can produce how much power?
More then 50 kW
Name disadvantages of vehicle mounted generators.
Noisy, make communication difficult, exhaust fumes can contaminate the scene.
If small amounts of power are needed what can be used in conjunction with the vehicles electrical system?
Inverter
Name advantages and disadvantages of using a inverter.
Advantages: fuel efficient, minimal noise.
Disadvantage: exhaust, limited power, limited mobility.
Name the two categories of lighting equipment.
Portable and fixed
Name the watt range for a portable light.
300-1000 watts
Name the watt range for a fixed light.
500-1500 watts
What determines the number of fixed lights that can be placed on a apparatus.
the amount of power available from the vehicle mounted generator or vehicles power system.
What three criteria must a auxiliary electrical equipment have>
waterproof, intrinsically safe, designed for the amount of current.
Standard for electrical safety in the work place.
NFPA 70E
Who should repair generators?
Qualified personal or electrician.
Name the two ways that rescue tools can be classified.
Their power source or their use.
Name the two ways rescue tools can be classified if using there power source.
Manual or power operated.
Name the five ways that rescue tools can be classified if using there use.
Cutting, Stabilizing, Lifting, Pulling, Other Activities
Standard on power rescue tools.
NFPA 1936
Name advantages of electric power tools.
Electricity is readily available, lightweight tools, battery tools are portable.
Name a disadvantage of a portable battery powered tool.
Less powerful then other tools.
Most powered rescue tools are powered by what?
Hydraulic pumps
Name three ways that a hydraulic pump may be operated.
hand, electric motor, gasoline engine
Name the four basic types of hydraulic and electric power rescue tools.
Spreaders, Cutters, Combination Spreaders/Cutter, Extension Ram
How many inches can a spreader typically open?
32”
How many inches can a cutter typically open?
7”
A rams force is strongest in which direction?
Opening force (pushing ) is twice the force as it closing (pulling) force.
What type of saw is ideal when cutting sheet metal body panels and structural components on a vehicle.
Reciprocating saw
How many RPM’s can a rotary saw spin up to?
6000
If a whizzer saw is run at 90psi from a SCBA bottle w/ a regulator, how long can it run?
3 minutes
Air chisels are used to cut medium to heavy gauge metal, remove rivets and bolts. What PSI range are they ran at?
90-250psi
Name four types of stabilization tools.
Jacks, Buttress Tension Systems, Wheel Chocks, and Cribbing.
Jacks used in stabilization can also be used for what?
Lifting
Used for heavy lifting, when used in conjunction with cribbing they can also be used for stabilization.
Hydraulic Jacks
Name two types of non hydraulic jacks.
screw jack and ratchet lever jack.
Name two types of screw jacks.
bar screw and trench screw
Bar screw jacks typically are not use for what?
Lifting, just used for stabilizing.
What is the least stable of all types of jacks?
Ratchet lever jack (high lift jack)
A buttress tension system is used in what scenario?
A vehicle resting on its side or top.
What is the minimum amount of 4x4 post that should be used in a buttress tension systems?
Three
When placed against the downhill side of the rear tires of a vehicle, wheel chocks can hold a vehicle in place at what grade?
10-15 percent
Standard on Automotive Fire Apparatus.
NFPA 1901
Standard for Wildland Fire Apparatus.
NFPA 1906
Wooden or plastic blocks used to stabilize a vehicle during vehicle extrication or debris following a structural collapse; typically 4x4” or larger and between 16-26” long
Cribbing
Cribbing may have the ends painted to indicate what.
Length
Plastic cribbing is prone to slipping when what?
Wet
Name three uses for lifting tools.
Lower a rescuer, lift a object, lift a victim
Name the three types of lifting bags.
high pressure, medium pressure, low pressure
Deflated it lay about 1 inch thick. Surface area ranges from 6 x 6 to 36 x 36. Inflate up to 20”. Loses stability and raising power as it is raised.
High pressure lifting bag
Larger then high pressure bags and can inflate up to 6 feet. Most stable when fully inflated.
Low and Medium pressure lifting bags
when cribbing during a lifting bag exercise, how should it be used?
At least three pieces per layer and the top is solid.
Lifting bags should not contact materials hotter then what temp?
220F