Your vessel displaces 750 tons and measures 151'L by 35'B. What is the reduction in GM due to free surface if the fish hold (60'L by 31'B by 10'D) is filled with 3.5 feet of water? (Each foot of water weighs 53.1 tons)

Correct Answer: Option C — 4.55 feet

Transverse stability loss from slack liquids in tanks or holds is determined by the moment of inertia of the free surface divided by vessel displacement. For these exact dimensions, the resulting reduction in metacentric height totals 4.55 feet, requiring careful operational monitoring.