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（）.<br>A:reduce the free surface effect and raise the KG<br>B:not have any effect on free surface and raise the KG<br>C:reduce the free surface effect and lower the KG<br>D:not have any effect on free surface and lower the KG

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

出自：海船船员证

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