The DEEP DRILLER is loaded as shown in the Sample Load Form Number 5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the transverse free surface corrections is __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — 0.22 foot
Transverse free surface corrections are inversely proportional to displacement and directly dependent on transverse free surface moments. Deballasting tanks alters the total displacement and waterplane geometry, resulting in a calculated increase of 0.22 foot in the transverse free surface correction.
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