The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new height of the center of gravity corrected for longitudinal free surface effects?

Correct Answer: Option B — 53.55 feet

Calculating the new vertical center of gravity (KG) requires subtracting the vertical moment of the removed mud from the total vessel moment, then dividing by the new displacement. After accounting for the free surface effect correction (FSE) as per standard stability procedures, the resulting corrected height is 53.55 feet.