單項(xiàng)選擇題In a twin screw ship going half-ahead，both screws turning outboard and the rudder amidships，no current or wind，the vessel will（）.
A.Move bodily to port
B.Move bodily to starboard
C.Move in a zig-zag motion
D.Steer a fairly straight course
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1.單項(xiàng)選擇題Flanking rudders effect a vessel’s heading because of the（）.
A.effect of the propeller flow on the rudders
B.water flow due to the vessel's movement through the water
C.tunnel affect of the water flow past opposing rudders
D.discharge current being channeled to impinge on the vessel's deadwood
2.單項(xiàng)選擇題As to the stained plates，the fault lies（）you.
A.on
B.to
C.up
D.with
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The Vessel’s cargo holds are properly fitted with（）in way of hatches.
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Tonnage openings must be closed by means of（）.
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The hull is divided up into a number of watertight compartments by（）.
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The strake on each side of the keel is called a（）.
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Your vessel has a midships engine room and the cargo is concentrated in the end holds．The vessel is（）.
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