TRAINING BULLETIN 4 - GAS TANK TRUCK AND TRAILER ROLLOVER Flashcards
How much do Gas-Diesel, California oil refineries produce each day?
- 43 million gallons of gas
- 8 million gallons diesel
- 9,500 retail service stations
Who regulates the refineries?
Department of transportation through
- National Highway Traffic Safety Admin
- Bureau of Carrier Safety & Office of Haz Mat
What percentage of fuel is transported by Tank Trucks?
- 90%
- Operating valves may open vents which could cause larger spills.
Identifying Gasoline Tank Truck/Trailers, Classified by Fed Motor Carrier Standards:
- MC306, 1967-1993
- DOT406, 9/1/93 to present
TANK TRUCK/TRAILERS ARE DESIGNED TO CARRY?
- Flammable liquid
- Combustible liquid
- Class B Poisons
- Liquid Food Vapor Less than 3 psi
How many gallons can a 2 axle and a 3 axle truck store?
- 2 axle trucks: 2 axle trucks store 3000 gallons
- 3 axle trucks: 3 axle trucks store 5000 gallons
Truck and Tractors: can be how long? ____ ft & how many gallons in one tank?
- Can be 40 ft long, 9000 gallons in one tank
- truck/tractor two-piece carry 4200 in truck and 4800 gals in trailer. (9000 total)
Tank characteristics
- Elliptical Shaped Tank Ends
- Longitudinal Roll-Over protection along the top
- Aluminum and are the thickest 3/16” on the bottom and gradually gets thinner.
- Plumbing & Valves for off-roading under tank
- Vapor recovery on right rear of tank ( not on all vehicles)
- Manhole & vapor recovery valves on top
What are Baffles used for?
- Baffles are primarily used for strength.
- Double bulkheads may be illegally plugged due to leaks
- Do not remove plug: up tp 200 gallons of product may mix
- If suspected in void space, Haz Mat TF will drill & pump compartment.
What are Vapor compartments used for?
- Allow for expansion
- Located on top & has reinforce rail that runs the length of the tank in cause of accidents — particularly rollovers
What type of exterior piping is constructed and engineered to fall upon impact?
Shear Points
- Constructed with built-in shear points
- Engineered to fall upon impact, before damage can occur to internal valves and plumbing.
Pressure relief valves on tanks:
3 to 5 psi
During a defensive attack on a tanker fire, what are 3 keys factors?
- Control Run Off
- Fuel burns a 1 ft per hour. Four feet of fuel will take four hours to burn off.
- Tank melts: 1,200 degrees
Offensive attack
You should never flow water into tank, because fire will spread?
True or False
TRUE
