單項(xiàng)選擇題No deduction is allowed for the（）mess-room in ships having passenger accommodation，which are not also provided with a passengers’ mess-room.

A.officer
B.officers
C.officer's
D.officers’


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1.單項(xiàng)選擇題Metal plates that cover the top of the hawsepipe are called（）.

A.footings
B.plugs
C.buckler plates
D.stop waters

2.單項(xiàng)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

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

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

4.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

5.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