Hazmat FRA/FRO Study Guide questions with
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1. MC-306/DOT 406 flammable liquid tanker - answers>Carries food grade products,
gasoline, or other flammable and combustible liquids. It is oval shaped and can carry
between 6K and 10K of product. Non pressurized, working pressure is between 2.65 psi
and 4 psi. Aluminum/stainless steel, full rollover protection and remote shut off valve.
2. MC-307/DOT 407 chemical hauler - answers>It has a round (uninsulated) or horse shoe
(insulated) shaped tank and can hold 6K to 7K. Transports flammable liquids, mild
corrosives, and poisons. Has a higher internal working pressure up to 35 PSI. rubber
lining to prevent corrosion.
3. MC-312/DOT 412 corrosives tanker - answers>Commonly used to carry corrosive such as
concentrated sulfuric acid, phosphoric acid, and sodium hydroxide. Has reinforced rings
around the tank. Operates at approximately 15 to 25 psi and holds approximately 6K
gallons.
4. MC-331 pressure cargo tanker - answers>Carries ammonia, propane, Freon, butane.
Liquid volume in the tank varies ranging from 1000 to 11,000 gallons. Has rounded ends,
typical of a pressurized vessel and is commonly constructed a steel or stainless steel with
a single tank compartment operates at approximately 300 psi with internal working
pressure of 250 psi
5. MC-338 cryogenic tanker - answers>Operates like Dewar container. Low pressure to
insulate low temps needed for the cryogens carried. Boxlike controls structure on rear of
tanker.
6. Tube trailers carry: - answers>Compressed gases ex: hydrogen, oxygen, helium, and
methane.
7. Dry Bulk Cargo Tank - answers>Carries: bulk good such as powders, pellets, fertilizers or
green. Or not pressurized. V-shaped with rounded sides that funnel out the contents.
