Flashcards in Vehicle Fires Deck (74):
According to the power point, vehicle fires and deaths have overall been increasing or decreasing?
True or false...
Technological advancements in automobile safety for passengers has made it safer for firefighters as well
The powerpoint lists 12 modern automobile hazards. Try to list them all
Energy Absorbing bumpers
Wheels and tires
Most vehicle interiors are made up of __% plastic
Increased use of plastic means increased intensity of ____
Plastic components contribute to greater BTU production. Examples range from _____ to _____
750,000 to 2 million
The main type of plastic in cars is ____
Another type of plastic used on cars is _____
Enduraflex produces what type of gas?
Under fire conditions, plastics produce what 3 deadly vapors?
Energy absorbing bumpers were produced and required by the DOT on all passenger cars in what year?
True or False
The original design of energy absorbing bumpers was not a threat to firefighters
What kind of design do today's bumpers have that can explode with deadly results?
Hydraulic piston design
What are the 4 types of suspensions listed on the powerpoint?
Standard "leaf spring and shock"
Owner modified lifting or lowering
Which of the 4 types of suspensions is listed as "potential extreme threat"?
Which of the 4 types of suspensions is listed as "mostly commercial with no threat"?
Why are owner modified lifted or lowered vehicles dangerous?
Bigger struts. Higher off the ground so shrapnel has a potential to reach you easier
What is a pressure vessel?
Any vessel that contains a fluid, gas, or air
What are the 6 examples of pressure vessels listed on the power point?
Hatchback and hood struts have a ____ ____ filled piston have a potential for ____
What causes air bags to rapidly fill up with air?
If a car crashes and the airbag does not go off, can the airbag still deploy after the battery is detached?
Why is rapid cooling of an airbag area important during a fire?
Sodium azide is flammable and heat can make it explode
To be safe, you should stay out of ____ of undeployed bags
Sodium azide can do what 4 thing to the human body?
Can be fatal if absorbed through the skin
Could be fatal if swallowed
Can cause respiratory, skin, and eye irritation
Can cause CNS problems
In many cases with sodium azide, people will complain of ____, ____, and ____ irritation
Skin, tracheal, and eye irritation
What are the NFPA ratings for sodium azide?
The powerpoint lists 9 fuels for vehicles
Try to list them all
CNG (compressed natural gas)
LNG (liquid natural gas)
Multiple batteries for hybrid
Does gasoline in it's liquid state burn?
What is the vapor density of gasoline?
3-4 times heavier than air
What is the specific gravity of gasoline?
What is the flash point of gasoline?
Negative 45 degrees
What is the autoignition temperature of gasoline?
1 gallon of gasoline has the same amount of potential energy as ___ pounds of nitroglycerin or ____ pounds of dynamite
What is the vapor density of propane?
What is the LEL and UEL of propane?
BLEVE potential of propane-
Expands ___ times its volume out of container
What does BLEVE stand for?
Boiling Liquid Evaporating Vapor Explosion
Compressed natural gas is mostly ____
What is the LEL and UEL of CNG?
What is the vapor density of CNG?
One good thing about CNG and Hydrogen is that they disperse ____
What PSI is CNG stored at?
2400-4000 psi and is dispensed to the vehicle at that same psi
What is the LEL and UEL of hydrogen?
What is the vapor density of hydrogen?
What psi is hydrogen stored at in vehicles?
5,000 AND 10,000 psi and is dispensed to the vehicle at the same psi
What is the typical capacity of a fuel tank?
Newer fuel tanks are made out of....
High-density polyethelene plastic
Fuel tanks have the potential for rapid....
Release of product
What three "vehicles" have different fuels, tanks, and storage items?
Campers, motor homes, and "lunch wagons"
What da H E double hockey stick is a lunch wagon?
What is the typical psi in a fuel system?
Fuel systems are closed and that means that pressure ____
Propane tanks are constructed of ____
CNG tanks are constructed of what 3 materials?
What do fuel systems have to prevent catastrophic failure?
Pressure relief mechanisms
How many manual shutoffs to the fuel system do CNG vehicles have?
Hydrogen tanks are made out of...
Carbon fiber epoxy resin
What is the normal operating temperature of a catalytic converter?
What temperature can one that is malfunctioning reach?
Drive lines can potentially____
What are 2 hazards that have to do with tires and rims?
Split rims (can be deadly)
What kind of acid is in batteries?
Can batteries explode?
What are the 3 types of vehicles listed for "dual batteries"?
Which battery cable do you disconnect first?
What color is the negative battery cable?
What may give an indication of the contents of the vehicle?
If you see weird fire or smoke during a vehicle fire, don't be afraid to...
Call for HazMat
What 5 things are you observing during a vehicle fire size up?
Color of smoke
Color of fire/flames
Location of fire
What fire is impinging on
What are the 7 tools listed on the powerpoint that you will need for a vehicle fire?
1 3/4 hoseline
Dry chemical extinguisher
Hand tools and/or cutters
What is the ideal and safe angle to approach a vehicle fire?
If you must approach from an unsafe angle, what must you keep in mind?
The fire apparatus should be placed at least ___ feet away from the vehicle fire
What are some of the first things you should cool in a vehicle fire?