單項(xiàng)選擇題Which of the following statements describes the results of excessive microbiological growths within a fuel system?()

A.all excessive amounts of growth will cause the main engines of the vessel to stall due to the inability to supply the proper quantities of fuel to satisfy the existing load
B.The deposits produced by these growths form blockages and flow restrictions ultimately leading to improper atomization of the fuel into the cylinders
C.Eventually the growth of these organisms will deplete the supply of food available to them, which in turn will cause their demise
D.If continual growth is permitted, a sweet odor similar to that associated with baking will be noticed when system components are opened for inspection


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1.單項(xiàng)選擇題A well-lubricated bearing surface always appears()

A.well knurled
B.slightly streaked
C.lightly glazed
D.highly polished

2.單項(xiàng)選擇題If the plunger or barrel of a fuel injection jerk pump becomes damaged,()

A.only the replacement of the entire pump would be acceptable
B.the injection pump and injection nozzle must be replaced
C.either the barrel or plunger must be replaced
D.the barrel and plunger must be replaced as a unit

3.單項(xiàng)選擇題In a modern internal combustion diesel engine, the load carrying part of the engine is referred to as the()

A.bedplate or base
B.sump or oil pan
C.cylinder block
D.frame

4.單項(xiàng)選擇題Black smoke exhausting from an operating diesel engine is an indication of poor combustion which may be caused by ()

A.water in the fuel
B.insufficient fuel for combustion
C.clogged air intake passages
D.burning lubricating oil

5.單項(xiàng)選擇題Increasing the compression ratio of a diesel engine while maintaining the designed rate of fuel flow will result in ()

A.increased horsepower
B.reduced efficiency
C.increased heat loss
D.lower cylinder pressures

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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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() is not installed on the main switchboar.

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The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()

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Which one is NOT the ‘clear grounds’ for a more detailed inspection?()

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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.

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As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()

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()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

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If separating effect is not good, which measure should be taken ()

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Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()

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Engine parameters shall be corresponded to NOx Technical Files. This is required by ()

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