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
您可能感興趣的試卷
你可能感興趣的試題
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
A.Glazing of the cylinder liners
B.Increase valve wear
C.Excessive oil pumping
D.Increase fuel consumption
A.for atomizing
B.for centrifuging
C.in a storage tank
D.in the re-circulating line
最新試題
（） is not installed on the main switchboar.
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Using a file without a handle may result in （）
The shipboard oil pollution emergency plan will be invalid after （）
The condensers located in various stages of a flash evaporator are cooled by（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Diesel engine air start system check valves are opened by （）