Question 4305 Deck General

The correct answer is D) vertical moments. When the height of the center of gravity increases due to loading a MODU (Mobile Offshore Drilling Unit), it will result in an increase in the vertical moments acting on the vessel. This is because the vertical distance between the center of gravity and the center of buoyancy (the metacenter) has increased, leading to higher overturning moments that must be counteracted by the righting moments of the vessel. The other options are incorrect because: A) Righting arm may increase or decrease depending on the specific loading conditions. B) Righting moment may increase or decrease depending on the specific loading conditions. C) Metacentric height may increase or decrease depending on the specific loading conditions.