The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing port list and bow down trim occurs. A leak in C1P is found. By deballasting from ballast tanks 2P and 3P, the inclination slowly decreases. The increase in the transverse free surface correction is __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — 0.18 foot
Calculating free surface correction changes involves analyzing shifts in transverse moments of inertia across altered ballast tanks. Using standard MODU hydrostatic tables yields a net transverse free surface correction increase of 0.18 foot.
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