A.gooseneck vents and flame screens
B.pressure-vacuum relief valves
C.branch vent lines and a vent header
D.forced draft blowers
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A.cofferdams
B.gastight bulkheads
C.passageways or living quarters
D.general cargo spaces
A.1 minute
B.3 minutes
C.5 minutes
D.10 minutes
A.a subsequent temperature rise will cause the cargo to overflow
B.air pockets may cause the cargo to bubble out of the ullage hole
C.the increased viscosity of the product requires higher loading pressure which increases the chances of a spill
D.the tank valve may be stiff and a spill will occur before the valve can be closed
A.as it warms up it becomes heavier than air
B.the way it reacts with sea water
C.the strong odor it produces
D.its low temperature causes frostbite or freezing
A.the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume
B.the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume
C.the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo
D.All of the above
最新試題
The designations A，B，C，D and E grades of cargo refer to the（）.
Sour crude oil（）.
Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall（）the system in accordance with the requirements of that Regulation.
One of the principal dangers inherent in liquefied petroleum gas is（）.
Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.
Regulations require that tankers handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
The deck water seal of the inert gas system（）.
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.
If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）