Question 4902 Deck General

You are correct, the answer is A) center of gravity. The existence of liquids in partially full tanks or compartments of a Mobile Offshore Drilling Unit (MODU) causes a virtual rise in the height of the center of gravity. This is because the liquid in the partially full tanks or compartments will shift as the MODU moves, causing the center of gravity to rise compared to a fully loaded or empty condition. The other options are incorrect because the center of buoyancy (B) and metacenter (C) are not directly affected by the presence of liquids in partially full tanks or compartments. The center of flotation (D) is a point on the waterline and is not related to the shift in the center of gravity.