A.360°
B.270°
C.180°
D.90°
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A.less
B.more
C.many
D.much
A.a warp end
B.a mooring winch
C.a worm gear
D.a barrel
A.cable lifters
B.spur wheels
C.bollard
D.warpends
A.a variable displacement axial piston pump
B.a constant displacement axial piston pump
C.a reciprocating piston pump
D.a centrifugal pump
A.Constant pressure system
B.Variable pressure system
C.Variable displacement system
D.Constant volume system
最新試題
Cold weather starting of a diesel engine may be made easier by（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
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