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
To proceed to the assistance of a ship in distress is()
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The shipboard oil pollution emergency plan will be invalid after ()
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Flame failure in an automatically fired auxiliary boiler can from a/an ()
Which of the following items don’t belong to dock repair works?()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
The treatment of the fuel oils involves storage, heating, filtering and()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()