What is the change in transverse moments for the DEEP DRILLER if 103.48 long- tons of ballast is transferred from a full ballast tank 1P to an empty ballast tank 10S?

Correct Answer: Option B — 15,181 foot-tons increase

Transverse moments are calculated by multiplying the weight by the distance between tank centers. Using the DEEP DRILLER stability booklet, the distance between 1P and 10S is 146.7 feet. Multiplying 103.48 long-tons by 146.7 feet yields 15,180.5, which rounds to 15,181 foot-tons, representing the total change in transverse moment.