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
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A.combustible liquid
B.flammable gas
C.flammable liquid
D.flammable solid
A.the gasoline tank is full
B.the bilges，cabins，etc. are thoroughly ventilated
C.you have fresh water on board
D.Each of the above is followed
A.with
B.by
C.of
D.for
A.Scrubber
B.Demister
C.Deck water seal
D.Final filter
A.pressure vacuum relief valves
B.excess flow valves
C.safety relief valves
D.flame screens
最新試題
When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.
Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.
Gasoline fumes tend to（）.
Which is NOT a safety precaution to be observed during the loading of LFG?（）
LFG tank and pipeline maintenance should include（）.
Upon release to the atmosphere，LFG readily（）.
The weight of liquefied petroleum gas vapors as compared to air is（）.
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.
Storage batteries should be charged in a well ventilated area because（）.
When fueling has been completed（）.