單項選擇題Many vessels are provided with flume tanks，which also have a dump tank located under the flume tanks. In the event the ship is damaged，you could dump the flume tanks into the dump tank which would（）.

A.reduce the free surface effect and raise the KG
B.not have any effect on free surface and raise the KG
C.reduce the free surface effect and lower the KG
D.not have any effect on free surface and lower the KG


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1.單項選擇題In ship construction，bulkheads in the quarters are generally（）.

A.structural
B.watertight
C.non-structural
D.continuous

2.單項選擇題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

3.單項選擇題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

4.單項選擇題As to the stained plates，the fault lies（）you.

A.on
B.to
C.up
D.with

5.單項選擇題A virtual rise in the center of gravity may be caused by（）.

A.filling a partially filled tank
B.using an on board crane to lift a freely swinging heavy object
C.emptying a partially filled tank
D.transferring ballast from the forepeak to the after peak