Training Bulletins 3- 11 Flashcards
TB 004 - Gasoline Tank Truck-Trailer Incidents
Aluminum has a melting point of approximately _________Fahrenheit, a temperature which can be expected about ____________ after the start of most fires
1300 degrees
10 minutes
TB 004 - Gasoline Tank Truck-Trailer Incidents
Gasoline Tankers:
They are designed to carry flammable and combustible liquids, alcohol, Class B Poisons and liquid food products with vapor pressures less than _____
3 PSI
TB 004 - Gasoline Tank Truck-Trailer Incidents
Most tanks are made of aluminum. The tank wall is thickest at the bottom at _____ and gradually gets __________ as you progress toward the top of the tank
3/16”
Thinner
TB 004 - Gasoline Tank Truck-Trailer Incidents
Construction and design features allow for early tank failure at relatively low temperatures with pressure relief devices designed to maintain ________
3 to 5 psi
TB 004 - Gasoline Tank Truck-Trailer Incidents
Gasoline Tanker Incident – Leak, No Fire: • Eliminate potential ignition sources a minimum of _______ from the spill
100 feet
TB 004 - Gasoline Tank Truck-Trailer Incidents
Gross weight of the vehicle, tank and product can be as much as _____________
80,000 lbs
TB 004 - Gasoline Tank Truck-Trailer Incidents
Vacuum trucks can only hold approximately ____% of their rated capacity depending on product weight and required vapor space
90
TB 005 - Automobile Fires and Associated Hazards
Hydraulic bumpers - Consists of a gas chamber filled with a mixture of inert, non-flammable nitrogen/helium gas pressurized to ______
150 psi
TB 005 - Automobile Fires and Associated Hazards
Hydraulic Bumpers - Consists of a gas chamber and travel is up to ______
Mechanical bumpers - Employs a heavy spring to absorb impact. These units travel up to ______
3 inches
4 inches
TB 005 - Automobile Fires and Associated Hazards
Working within _______ of any vehicle fire constitutes working in an IDLH
30 feet
TB 005 - Automobile Fires and Associated Hazards
The effective range of a 20 pound dry chem extinguisher is __ to __ feet
15 to 20
TB 005 - Automobile Fires and Associated Hazards
True or False
LPG is heavier than air
True
TB 005 - Automobile Fires and Associated Hazards
The _____________________ will normally assume the role of Safety Officer.
Engine company captain
TB 007 - Fighting Fires with Large Spray Streams
Water expands into steam at a ratio of __ to ______ with 1 gallon of water capable of producing about 227 cubic feet of vapor.
1;1700
TB 007 - Fighting Fires with Large Spray Streams
_______________ applies to the friction between air and water as the water travels toward the fire.
Skin Friction
TB 008 - Electrical Hazards at Fires
According to the National Institute for Occupational Safety and Health (NIOSH), electrical accidents in the United States account for over _____ deaths a year and OSHA statistics indicate that electrocution accounts for ____ % of worker deaths annually
700; 12%
TB 008 - Electrical Hazards at Fires
Quantity of electricity is expressed as ______
The push or pressure behind a current flow is defined as ________ ; Kilovolts is the measure of _______
________ determines how much current will flow through a component controlled by Resistors
AMPS
Volts ; 1000 Volts
OHMS
TB 008 - Electrical Hazards at Fires
amps x volts =
watts x volts =
watts x amps =
Watts
Amps
Volts
TB 008 - Electrical Hazards at Fires
Extremely high voltage:
High voltage :
Low voltage:
And also commonly referred to as _______
60,000 volts or greater
600 to 59,999 volts
600 volts or lower ; secondaries
TB 008 - Electrical Hazards at Fires
Generation facilities generate electricity between ________ and ________
4000 and 20,000 volts
TB 008 - Electrical Hazards at Fires
Voltages on transmission lines range from ____ to over ________. Most of the transmission lines coming into Los Angeles are ______, but many lines are higher than that.
69Kv ; 1000Kv
230 Kv
TB 008 - Electrical Hazards at Fires
Strings of insulators on transmission towers can range from _______ to ____ long
3 to 20 feet
TB 008 - Electrical Hazards at Fires
Overhead Transformers - Pole-mounted transformers are the most common distribution transformer. They are installed on the ______ circuits to step the voltage down to 120/240volts for most residential consumers.
4.8 kv
TB 008 - Electrical Hazards at Fires
________ of electricity going through the body for just two seconds is enough to cause death.
1/10th of an AMP
TB 008 - Electrical Hazards at Fires
For every minute that defibrillation is delayed, the patient sustains a _____% reduction in their chances for survival
10%
TB 008 - Electrical Hazards at Fires
Heart paralysis occurs at _____
4 amps
TB 008 - Electrical Hazards at Fires
When cutting triplex, cut the ______ conductor first
Closest
TB 008 - Electrical Hazards at Fires
Streetlights can be fed from conductors carrying ______ to ____ or more
120 to 6150 volts
TB 008 - Electrical Hazards at Fires
When performing electrical emergency rescue , vehicle should be driven clear of the wires by at least ________
35 feet
TB 008 - Electrical Hazards at Fires
The explosive range for carbon monoxide (co) _____________
12.5 % to 74%
TB 008 - Electrical Hazards at Fires
Manhole covers often weigh 300 pounds and have been blown _____feet into the air and a distance of _____ feet.
75; 125
TB 008 - Electrical Hazards at Fires
The LADWP tests gloves to ________ every ____ days.
10,000; 60
TB 009 - Organic Phosphates - Insecticides
What is the antidote fore organic phosphate poisoning ?
Atropine
TB 010 - Litter basket (Stokes Type)
The Helicopter Unit uses one _______ “Tagline” to be attached to the head of the litter basket
200 foot
TB 010 - Litter basket (Stokes Type)
The tagline has a breakaway segment of velcro which will separate under ____ pounds of pressure.
80
TB 010 - Litter basket (Stokes Type)
Upper Levels of Structures :
The most stable spot of the truck is the ________ position to the objective so that the ladder may be operated directly over the cab or trailer.
Straight in-line
TB 010 - Litter basket (Stokes Type)
Actual Practice (Simulated Rescue) : Stokes Basket
Load rolls of hose in basket to simulate patient with ____________
Approx. weight ?
Three sections of 2 1/2” hose
180 lbs
TB 011 - Pressurized Dry Chemical Fire Extinguishers
DRY CHEMICAL is approximately ____ as effective as CO2 on hydrocarbon fires, including methane, for a given size extinguisher
Twice
TB 011 - Pressurized Dry Chemical Fire Extinguishers
Which extinguisher can be used to neutralize acid spills?
Dry chemical
TB 011 - Pressurized Dry Chemical Fire Extinguishers
When acid spill in encountered, pull locking pin on extinguisher and hold the nozzle _____ above the acid
2 or 3 feet
TB 011 - Pressurized Dry Chemical Fire Extinguishers
What is a disadvantage of using dry chem ?
Lack of control after extinguishment
TB 011 - Pressurized Dry Chemical Fire Extinguishers
Dry chemical extinguisher consists of:
A. Shell of racy gauge steel, tested to ________
600PSI
TB 011 - Pressurized Dry Chemical Fire Extinguishers
The shell is filled with _______ lbs of dry chemical and then pressurized to approximately _____psi with compressed air.
20; 165
TB 011 - Pressurized Dry Chemical Fire Extinguishers
discharge time of a 20- pound dry chemical extinguisher with the valve fully open is ______
10 seconds
TB 011 - Pressurized Dry Chemical Fire Extinguishers
The 20 pound CO 2 extinguisher in use on the Department will last _______
60 seconds
TB 011 - Pressurized Dry Chemical Fire Extinguishers
Dry Chem has an effective range of approximately
__________
15 to 20 feet
TB 011 - Pressurized Dry Chemical Fire Extinguishers
The extinguisher will function effectively only so long as the air pressure is between __________
125 to 175 psi
the voltage is stepped down _____ times in the distribution system before it is delivered to most consumers.
3
High-voltage capacitors have been known to retain a deadly electrical charge even _________ power has been removed from the circuit.
Weeks after
the severity of injury from electrical shock depends on the amount of electrical current and the length of time the current passes through the body. An amperage of ______ going through the body is enough to cause death?
10 amps
TB 003 - Type IV Buildings - Aluminum
Aluminum sheets, are ___ inches wide and ____ feet long, held in place by lead-headed straw- nails twisted around the pipe framework
26”W x 10’ L
A charge of static electricity capable of jumping ____ to ____ may build up in a person’s body when climbing a tower
2” to 3”
TB 011 - Pressurized Dry Chemical Fire Extinguishers
What are the three ways Dry Chemical Extinguisher works ?
- In the presence of heat, releases carbon dioxide and water vapor which provides a smothering action.
- Heat is absorbed by both solid particles and water vapor which provides cooling.
- Chemical chain reaction of combustion is interrupted.
TB 011 - Pressurized Dry Chemical Fire Extinguishers
Generally dry chemical is most effective on fires involving ____________, __________ and ____________
Flammable liquids, gases, and liquefied gases
TB 011 - Pressurized Dry Chemical Fire Extinguishers
To prevent splashing when using on depths of flammable liquid, care should be taken to direct the initial discharge from a distance not closer than
___ to ____
6 to 8 feet
TB 004 - Gasoline Tank Truck-Trailer Incidents
If there is no container available, you must use the exhaust hose method, i.e. dammed fuel. Vapors are directed a minimum of ____ feet downwind and downhill from any ignition source.
50 feet
TB 004 - Gasoline Tank Truck-Trailer Incidents
What 4 types of materials are tanker trucks designed to carry ?
- Flammable liquids
- Combustible liquids
- Class B Poisons.
- Liquid food products w less than 3 PSI
TB 004 - Gasoline Tank Truck-Trailer Incidents
When are double bulkheads required ?
When carrying flammable products with different flashpoints in the same tank
TB 004 - Gasoline Tank Truck-Trailer Incidents
Why are baffles primarily installed for ?
Tank strength
TB 04 Gasoline Tank Truck-Trailer Incidents
when a defensive attack is employed for a gasoline tanker fire the idea is to let the fire burn itself out. Gasoline will burn at the rate of about _________ vertically, regardless of the surface area. If the fuel that is burning is 4 feet deep in a tank you can expect it to burn for about _____ before it burns itself out.
One foot ; 4 hours
TB 04 Gasoline Tank Truck-Trailer Incidents
Disconnection of tow bar shall only be performed by _______________ AND only after _____________.
Trained heavy wrecker personnel ; after product off-loading
TB 04 Gasoline Tank Truck-Trailer Incidents
Los Angeles City Hazardous Materials companies have received equipment and training on what is considered the safest and quickest method of off-loading an overturned tanker. This method is accomplished by drilling a _____ inch hole in the ALUMINUM tank with a _______ drill
4 inch ; pneumatic
