TB 005 - Automobile Fires and Associated Hazards Flashcards
Approximately _____% of the Department’s fire responses involve motor vehicles.
20%
What are considerations to be included in proper size-up and implementation of tactics?
- Apparatus Placement
- Vehicle Involvement
By placing apparatus uphill it _____
- Avoids accidental contact with hazardous/flammable liquids and vapors.
- Facilitates advancing lines and equipment.
- Provides protection against runaway vehicles.
By placing apparatus upwind it _____
- Affords protection from hazardous vapors
- Reduces smoke in the work area.
What are the five considerations of Apparatus Placement
- Uphill
- Upwind
- Personnel Protection
- Warning Devices
- Water Supply
How can the apparatus be used for personnel protection?
- To shield the work area from traffic hazards.
- Improves equipment access.
- Creates a safe work area taking into consideration the potential for fuel tank rupture.
Types of Warning Devices
- Cones for safety
- Apparatus warning lights
- Apparatus lights to illuminate work area
- Judicious use of flares avoiding accidental involvement as ignition source
- CAUTION: CHP indicates use of excessive warning lights may cause focus fixation, particularly in drunk drivers
If the water carried on the responding apparatus will not be sufficient, What are other possible sources of a water supply?
- Additional apparatus
- Hydrants
- Pools
- Reservoirs
- Water tank trucks
- Aerial ladder utilized to improvise a standpipe
What are the four areas of vehicle Involvement
- Engine Compartment
- Passenger Area
- Truck/Cargo Area
- Vehicle Exterior
Where might engine compartment release levers be located?
- Interior release
- Grill area
- Near front bumper
What tool(s) should be used to prop hood open and why?
- Hayward / Crowbar
- To protect against spring failure
Batteries create an explosion hazard due to presence of _____ vapors
Hydrogen
When safe, always disconnect battery ______ cable first.
Ground
ALWAYS WEAR __________, IF NOT WEARING SCBA FACE PIECE, WHEN WORKING IN ENGINE COMPARTMENT.
Safety Goggles
How can the ground cable be identified?
The ground cable is the one attached to the vehicle body/frame
Avoid contact with ______ _____.
Battery Acid
Control of emissions from evaporation of fuel has been required in car models since _____
1970
The ______ in the canister absorbs the vapors and stores them
Carbon
Fuel vapors which would otherwise escape to the atmosphere are directed to a _____ ______.
Vapor Canister
This canister is most often located in the _____, _______ portion of the engine compartment, but in some cases, may be located in one of the _____ _____ _____.
- Lower, forward
- Front wheel wells
The _____ ________ is an exhaust emission control device located in the vehicle exhaust system just ahead of the muffler.
Catalytic converter
The converter uses _______ to chemically convert undesirable exhaust emissions into less harmful emissions.
Catalysts
Catalytic converters can achieve temperatures high enough to ignite ______ ___________ that it may contact.
Ordinary combustibles
Freon gas used in air conditioners is under pressure and may emit the toxic gases _______ and _______ if heated to the point of decomposition.
phosgene and fluoride
Electric fans are controlled by a _________ and activate at ___________ engine temperatures
- thermostat
- predetermined
______ must be exercised to avoid injury due to the unexpected activation of the cooling fan.
Caution
____ _______ ________ is a leading cause of fires in the engine compartment
Fuel system malfunction
How can one accomplish eliminating a fuel source in an automotive?
Crimping the fuel line and/or deactivating the fuel pump
______ and _______ ______ are used in numerous engine components.
Plastic and combustible metals
For fires involving dash instrumentation, disconnect the electrical power and treat as a _____ fire.
The interior passenger area is more a contributing factor to the ________ and a ______ rather than an ignition factor.
- Spread of fire
- Source of toxic smoke
Fires involving upholstery areas require ______ overhaul.
Fires involving upholstery areas require ______ overhaul.
Breathing apparatus ______ be used when ventilation is inadequate or impractical.
shall
When trunk/cargo area springs, inert gas piston cylinders, extending arms are exposed to heat, ______ or ______ of these devices should be expected
failure or rupture
Ensure ______ _______ by allowing adequate clearance when releasing truck latch mechanisms.
personal safety
Entry to trunk/cargo area may be by a _____/_____ mechanism or by an _____ ______ ______ similar to hood release mechanisms.
- Lock/key
- interior cable release
Fires and incidents involving the trunk/cargo area are usually related to ________ carried therein.
materials
firefighters must exercise extreme caution when addressing _____/_____ area incidents.
trunk/cargo
Storage area contents may involve _____, _______, _______ or other hazardous materials.
toxic, flammable, corrosive
Hydraulic energy absorbing bumpers have _____ chambers
Two
Hydraulic energy absorbing bumpers consist of one gas chamber filled with a mixture of inert, non-flammable _______/______ gas pressurized to ____ and a hydraulic fluid chamber which is filled with a _______ based fluid.
- Nitrogen/Helium
- 150 PSI
- Petroleum
What are the two hydraulic energy absorbing bumper chamber’s separated by?
A floating piston
Hydraulic energy absorbing bumpers travel up to _____ inches
Three
What type of energy absorbing bumpers employ a heavy Spring to absorb impact?
Mechanical
Mechanical energy absorbing bumpers travel up to _____ inches
Four
The two type of energy absorbing bumpers are ______ and _______
Hydraulic and Mechanical
The two type of energy absorbing bumpers are ______ and _______
Hydraulic and Mechanical
Avoid the use of a ______ ______ on hydraulic units to preclude possible ignition and injury.
Cutting Torch
Unusually high pressure developing from fire conditions may result in the sudden release of the bumper assembly causing ______ _______ to personnel.
serious injury
At an incident in the valley, a bumper assembly traveled a distance of ____ feet
25 feet
CAUTION: The safe deployment of ______ and _______ must allow for the possible release of vehicle bumper assemblies.
apparatus and personnel
_________ _________and/or __________ are the usual causes of tire fires.
Overheated brakes and/or underinflation
a _____ fire can extend into the cargo, passenger, and engine compartments.
tire
a _____ fire can extend into the cargo, passenger, and engine compartments.
tire
____ _______ of water are required for cooling and extinguishment.
Large quantities
Tire fires may involve _______ _________ components
combustible metal
Tire fires may involve _______ _________ components
combustible metal
CAUTION: Tires exposed to fire may ______ causing vehicle to drop suddenly.
explode
In many auto incidents it becomes necessary to break window glass. This can be accomplished by striking the glass in a _______.
corner
Beware of ______ glass as it has the ability to camouflage a smoke filled vehicle.
tinted
Most auto glass is _______ and will break out in small chips. The exception is the front windshield, which should be _____ _______
- tempered
- safety glass
What are the two types of material fuel tanks are made of?
- Metal
- Plastic
Metal fuel tanks are made of _____ _____ with crimped and welded seams
sheet metal
Plastic fuel tanks are made of high-density _________ or similar material.
polyethylene
Gasoline vent lines have ______ hose connecting them to tank.
neoprene
The ______/______ relief valve in most caps has a plastic disc which, if melted from heat, could cause valve malfunction by plugging the vent.
pressure/vacuum
The ______/______ relief valve in most caps has a plastic disc which, if melted from heat, could cause valve malfunction by plugging the vent.
pressure/vacuum
Removing the gas cap from a fuel tank, under heat and pressure conditions, could result in a _____ or ________
reflash or explosion
The most severe casualties, in terms of loss of life and property, occur from fires following ___ ____ collisions.
rear end
Gasoline has a flash point of ___ degrees fahrenheit
-45 degrees fahrenheit
Gasoline has a Specific Gravity of _____
0.8
Gasoline is not _____ ______
water soluble
Diesel #2 has a flash point of ___ degrees fahrenheit
125 degrees fahrenheit
Diesel #2 has a Specific Gravity of _____
1.0
Diesel #2 is not _____ ______
Water Soluble
If appropriate, _______ should be initiated to prevent fuel from entering drainage system.
containment
Containment methods may utilize ______, _______, _____ etc. Large spills may require additional assistance obtained through ____.
- sawdust, sand, plastic.
- MFC
Small spills can be eliminated utilizing ____, ______.
sand, sawdust
Contact MFC to request response of ____ ______ ______ or ______ ________ for proper spill disposal.
City Street Maintenance or appropriate agency
______ wash fuel spills into storm drains
NEVER
______ wash fuel spills into storm drains
NEVER
If fuel has already entered the drainage system, attempt to dilute the product by flushing with ______ amounts of water.
copious
If fuel has already entered the drainage system, attempt to dilute the product by flushing with ______ amounts of water.
copious
Notify ____ if fuel has entered the drainage system
MFC
Working within _____ feet of any vehicle fire constitutes working in an IDLH
30 feet
Any member working within the IDLH of any vehicle fire prior to extinguishment or before being determined to be safe by the IC shall be ___ _______.
fully encapsulated
Any member working within the IDLH of any vehicle fire prior to extinguishment or before being determined to be safe by the IC shall be ___ _______.
fully encapsulated
_______ _________ should consider establishing a water supply or calling for an additional engine company
Incident Commanders
_______ _________ should consider establishing a water supply or calling for an additional engine company
Incident Commanders
Standard operating procedure involves the minimum deployment of a ___________ for fire suppression and a ______________ for personnel protection.
- 1-1/2” hose line
- dry chemical extinguisher
position dry chemical extinguisher on ______ side of vehicle.
windward
position dry chemical extinguisher on ______ side of vehicle.
windward
The effective range of a 20 pound extinguisher is ____ to ____ feet.
15 to 20 feet
Explosion resulting from the introduction of oxygen into a confined space/area that is both pressurized with heated flammable gases and deficient in oxygen is known as _______
Backdraft
Sudden ignition of combustible gases and/or combustible surfaces in an involved area resulting in a Sudden and intense rise in temperature is known as _______
Flashover
Cooling the ___ ___ is an advisable safety precaution if fire impingement on the tank is suspected
fuel tank
The hazard of a _____ is an important consideration when addressing fires in vehicles utilizing Liquified Petroleum Gases (LPG).
BLEVE
The hazard of a _____ is an important consideration when addressing fires in vehicles utilizing Liquified Petroleum Gases (LPG).
BLEVE
The LPG storage cylinder is usually found on the ______ of the vehicle on either side or the rear.
exterior
Recorded BLEVES have occurred within ____ minutes of fire exposure.
10 minutes
Recorded BLEVES have occurred within ____ minutes of fire exposure.
10 minutes
__________ shall be utilized whenever the presence of toxic gases is suspected.
Self-contained breathing apparatus
The first arriving ______/________ must control operations maintaining safety for personnel and victims at all times.
fire company/rescue ambulance
During vehicle extrication the ______ _______ ______ will normally assume the role of Safety Officer.
Engine Company Captain
