The COASTAL DRILLER, with no list, is at a true mean draft of 10 feet and 10 inches. LM is 1,699,463 ft-kips. Using only tanks 1, 25, and 26, how many kips of drill water must be transferred to level the jack-up?

Correct Answer: Option B — Transfer 53.1 kips each from 25 and 26 forward to 1

Longitudinal leveling of the jack-up at the specified true mean draft requires shifting moments symmetrically. Transferring 53.1 kips each from tanks 25 and 26 forward to tank 1 compensates for the longitudinal moment deficit, returning the vessel to an even keel per hydrostatic operating instructions.