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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Inerting means（）.
Releasing oil from the sea anchor of a survival craft may（）.
Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because（）.
Using an inert gas system on a tanker has which advantage(s)? （）
Spreading oil on the open sea has the effect of（）.
Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
After making the required notification that a large oil spill into the water has occurred，the FIRST action should be to（）.
Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.
Regulations require that tankers handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
The designations A，B，C，D and E grades of cargo refer to the（）.