A.a system with a Hydraulic Power Supply (HPS) unit
B.a system with roller guides for exhaust valves
C.a system with an electronically controlled Alpha Lubricator
D.a system directly powered by electric motor
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A.Lower fuel consumption
B.Better balanced cylinder power
C.A shorter overhaul period
D.Less smoke emission
A.too low
B.a little lower
C.a little higher
D.exactly the same
A.a little lower
B.a little higher
C.too low
D.exactly the same
A.control fuel injection time more precisely
B.control fuel injection rate more precisely
C.meet the environmental requirements
D.meet high engine speed requirements
A.big size
B.fuel economy
C.low speed
D.high power
最新試題
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Under MARPOL Code the ship to which it applies has to carry （）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
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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One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
To proceed to the assistance of a ship in distress is（）
Diesel engine air start system check valves are opened by （）