Safety & Environmental Protection (Deck) USCG Question #2009 (Set 61)

The free surface effects of a partially full liquid tank decrease with increased __________.

Official USCG Answer & Rule Citation

Correct Answer: Option A — displacement volume of the vessel

Free surface correction is inversely related to vessel displacement volume. A larger displacement provides a greater denominator when dividing the tank's free surface moments, thereby diminishing the net stability loss.

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