MC tanks Flashcards
What is the primary cargo for an MC 306 (DOT 406) tank?
Flammable liquids such as gasoline, diesel, jet fuel, and other low vapor pressure liquids.
What is the shape and pressure of an MC 306 (DOT 406) tank?
Oval or elliptical cross-section; operates at low pressure (3-5 psi).
What is the typical capacity of an MC 306 (DOT 406) tank?
9,000 to 10,000 gallons.
Where are the discharge valves on an MC 306 (DOT 406) tank?
Bottom of the tank for gravity-fed unloading.
Where is the emergency shutoff valve typically located on an MC 306 (DOT 406) tank?
Driver’s side front.
What placards are commonly used with an MC 306 (DOT 406) tank?
Class 3 - Flammable Liquids.
What types of cargo are typically transported in an MC 307 (DOT 407) tank?
Mild acids, flammable liquids, poisons, and some corrosives.
What is the shape and pressure of an MC 307 (DOT 407) tank?
Circular or horseshoe cross-section; operates at low pressure (up to 40 psi).
What is the typical capacity of an MC 307 (DOT 407) tank?
5,000 to 7,000 gallons.
Where are the discharge valves on an MC 307 (DOT 407) tank?
Usually located at the bottom.
Rear
Where is the emergency shutoff valve typically located on an MC 307 (DOT 407) tank?
Driver’s side front.
What placards are commonly used with an MC 307 (DOT 407) tank?
Class 3 - Flammable Liquids or Class 8 - Corrosives.
What is the primary cargo for an MC 312 (DOT 412) tank?
Strong corrosives such as sulfuric acid, hydrochloric acid, and sodium hydroxide.
What is the shape and pressure of an MC 312 (DOT 412) tank?
Narrow diameter with visible reinforcing rings; operates at low pressure (15-25 psi).
Why does an MC 312 (DOT 412) tank have reinforcing rings?
To support the tank structure due to the heavy and dense nature of corrosive liquids.
What is the typical capacity of an MC 312 (DOT 412) tank?
Around 3,500 to 6,000 gallons.
Where are the discharge valves on an MC 312 (DOT 412) tank?
Typically located at the rear or bottom of the tank.
What placards are commonly used with an MC 312 (DOT 412) tank?
Class 8 - Corrosives.
What is the primary cargo for an MC 331 tank?
Liquefied gases such as propane, butane, and anhydrous ammonia.
What is the shape and pressure of an MC 331 tank?
Circular cross-section with rounded ends; operates at high pressure (100-500 psi).
What is the typical capacity of an MC 331 tank?
2,500 to 11,500 gallons.
Where are the valves on an MC 331 tank?
Typically located on the top or rear of the tank with safety relief valves.
What placards are commonly used with an MC 331 tank?
Class 2.1 - Flammable Gas or Class 2.2 - Non-Flammable Gas.
What is the primary cargo for an MC 338 tank?
Cryogenic liquids such as liquid oxygen, nitrogen, or argon.
What is the shape and pressure of an MC 338 tank?
Tank-within-a-tank design; operates at low pressure (up to 25 psi) but must maintain cryogenic temperatures.
What is the typical capacity of an MC 338 tank?
Around 8,000 to 10,000 gallons.
Where are the valves on an MC 338 tank?
Rear of the tank with specialized piping and pressure-maintaining systems.
What placards are commonly used with an MC 338 tank?
Class 2.2 - Non-Flammable Gas or Class 2.1 - Flammable Gas (depending on the cargo).
What is the primary cargo for a dry bulk truck?
Powders, grains, pellets, or other dry bulk solids.
What is the shape of a dry bulk truck?
V-shaped hoppers with multiple compartments.
How are materials unloaded from a dry bulk truck?
Gravity-fed unloading through bottom-mounted valves or pneumatic systems.
What placards are commonly used with a dry bulk truck?
Class 9 - Miscellaneous or Class 5 - Oxidizer (if carrying chemicals).
