A.bottom-blow valve
B.skin valve
C.feed-check valve
D.feed-stop valve
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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
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
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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
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
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The ISPS Code consists of a mandatory section-Part A, which shows（）
To proceed to the assistance of a ship in distress is（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
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