A.settle near the bottom of the bilge
B.settle near the top of the bilge
C.settle evenly throughout all levels of the bilge by mixing with air
D.disperse to atmosphere
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A.nitrogen
B.oxygen
C.carbon dioxide
D.water vapor
A.5% or less
B.10% or less
C.15% or less
D.20% or less
A.97 times greater
B.94 times greater
C.10 times greater
D.2 times greater
A.over an electrically heated platinum filament
B.where it is mixed with nitrogen
C.where it is ignited by a sparking device
D.where its specific gravity is measured
A.combustible liquid
B.flammable gas
C.flammable liquid
D.flammable solid
最新試題
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Name one major advantage of transporting gas under refrigeration.（）
The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.
The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.
One of the principal dangers inherent in liquefied petroleum gas is（）.
Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.