What refers to the depth of a petroleum product in a tank ________．
A. Innage
B. Outage
C. Thievage
D. Ullage
查看答案
When a non-volatile cargo is carried in a tank that has not been previously gas freed，then
A. be purged with hydrocarbon gas prior to loading
B. be gas-freed after loading operations
C. not be maintained in an inert condition
D. be maintained in an inert condition
What is NOT classified as a flammable liquid ________．
A. Methyl alcohol
B. Heptane
C. Mineral spirits
D. Iso-Hexane
What material is allowed in construction of the hull of a vessel with an integral diesel fuel tank ________．
A. Steel or aluminum
B. Sandwich style fibreglass with a natural rubber core
Copper-nickel or copper silicon alloys
D. Any or all of the above
What is the major function of the deck water seal in an inert gas system ________．
A. Relieve excessive overpressures in the system
B. Isolate hazardous from nonhazardous areas
C. Prevent the flow of inert gas into closed tanks
D. Remove any leftover water or soot after the gas has been scrubbed
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