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
What normally helps in detecting escaping gas? （）
Which is NOT a safety precaution to be observed during the loading of LFG?（）
The vapor pressure of a substance（）.
The amount of LFG that may be loaded into a given tank is determined by（）.
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（）.
The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.
Gasoline vapor tends to collect（）.
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（）.