A.trichloromethane
B.sulfuric chlorohydrin
C.chlorine gas
D.4-methyl phenol
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A.prevent engine overheating
B.have proper air/gasoline fuel mixture ratio
C.be liquid- and vapor-tight
D.supply sufficient air to the intake manifold
A.B flammable liquid
B.C flammable liquid
C.D combustible liquid
D.E combustible liquid
A.permits the passage of vapor but not of flame
B.prevents the passage of flammable vapors
C.prevents inert gas from leaving a tank
D.permits vapors to exit but not enter a tank
A.A load on top system
B.Direct line system
C.Circle line system
D.An inert gas system
A.Evaporation
B.Dispersion
C.Emulsification
D.Drifting
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Regulations require that pumprooms on tank vessels carrying grade C liquid cargo with machinery spaces below the freeboard deck be ventilated with（）.
The designations A，B，C，D and E grades of cargo refer to the（）.
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.
The purpose of inert gas systems aboard tankers is to（）.
Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
Upon arrival at the discharging port，the inert gas system is（）.
The combined fan discharge rate in an inert gas system is related to the（）.
If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）
If a leak occurred while loading diethylenetriamine，the chemical data guide indicates you would smell an odor similar to（）.
Sour crude oil（）.