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 __________.

Correct Answer: Option D — reduce the free surface effect and lower the KG

Dumping flume tanks into a lower dump tank removes the slack liquid from the high stabilization tanks, completely eliminating their free surface effect while simultaneously lowering the vessel's vertical center of gravity (KG).