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
When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.
The tops of vents from gasoline tanks should terminate（）.
The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.
Upon release to the atmosphere，LFG readily（）.
It should be noted（）the use of synthetic mooring ropes able to produce sparks by their manipulation is absolutely forbidden on board petroleum tankers and LPG or LNG carriers，or any vessels carrying inflammable substances.
One of the principal dangers inherent in liquefied petroleum gas is（）.
The storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.
Where is thicker plating usually found in the construction of integral tanks on a ship? （）
The weight of liquefied petroleum gas vapors as compared to air is（）.
The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.