A.resist changes in viscosity with changes in temperature
B.resist emulsification
C.neutralize acids
D.resist oxidation at high temperatures
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A.high TBN value
B.low oil floc point
C.low oil demulsibility
D.low oil neutralization number
A.air filtration is inadequate
B.engine coolant leaking into the lube oil
C.fuel oil is leaking into the lube oil
D.the piston rings are excessively worn
When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?（）
Ⅰ.filtering
Ⅱ.settling
A.Ⅰ only
B.Ⅱ only
C.either Ⅰ or Ⅱ
D.neither Ⅰ or Ⅱ
A.water contamination
B.mixing oils of two widely different viscosities
C.overheating
D.aeration
A.plugging gooseneck tank vents to prevent accident overflow
B.maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line
C.sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill
D.maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the ship
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