A.decrease until the engine speed increases
B.increase as the load increases
C.decrease as the load
D.increases remain unchanged
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A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention
A.Lube oil is diluted and its viscosity is reduced
B.Sulfuric acid is formed
C.Bearings become pitted ad immediately fail
D.Valve stems develop sludge deposits
A.excessive surging at governed speed
B.combustion knock under load
C.poor fuel combustion
D.all of the above
The sludge tank installed in the diesel engine room is used to collect（）
Ⅰ.sludge from the fuel oil settling tanks ad centrifuge
Ⅱ.water that has been collected in the settling tank
A.Ⅰonly
B.Ⅱ only
C.bothⅠand Ⅱ
D.neitherⅠor Ⅱ
A.ignition lag
B.engine horsepower
C.lube oil system pressure
D.specific fuel consumption
最新試題
The shipboard oil pollution emergency plan will be invalid after （）
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To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
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
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Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
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