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
Where should the tops of vents from gasoline tanks terminate?（）.
Where is thicker plating usually found in the construction of integral tanks on a ship? （）
The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.
One of the principal dangers inherent in liquefied petroleum gas is（）.
Storage batteries should be charged in a well ventilated area because（）.
Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.
What would you consult to determine the number of persons required on duty while loading a cargo of leaded gasoline on your tanker? （）
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（）.
What normally helps in detecting escaping gas? （）
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.