题目内容

When a tank is to be gas freed after washing，the concentration of hydrocarbon vapour should be reduced by purging the inerted cargo tank with ______．

A. the oxygen
B. the gas
C. the inert gas
D. the hydrocarbon vapour

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What is a requirement for remote manual shutdown stations for internal combustion engine driven cargo pumps on tank barges ________．

A. They must be conspicuously marked
B. They must be located at least 10 feet from the engine
C. There must be at least two such shutdown devices
D. The valve rods shall be fitted with stuffing boxes

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What refers to the depth of a petroleum product in a tank ________．

A. Innage
B. Outage
C. Thievage
D. Ullage

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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

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What is NOT classified as a flammable liquid ________．

A. Methyl alcohol
B. Heptane
C. Mineral spirits
D. Iso-Hexane

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When a tank is to be gas freed after washing，the concentration of hydrocarbon vapour should be reduced by purging the inerted cargo tank with ______．

A. the oxygen B. the gas C. the inert gas D. the hydrocarbon vapour

What is a requirement for remote manual shutdown stations for internal combustion engine driven cargo pumps on tank barges ________．

What refers to the depth of a petroleum product in a tank ________．

When a non-volatile cargo is carried in a tank that has not been previously gas freed，then

What is NOT classified as a flammable liquid ________．

A. the oxygen
B. the gas
C. the inert gas
D. the hydrocarbon vapour