🔍 Key Concepts

• Structural stress on a MODU (Mobile Offshore Drilling Unit) and how global loads differ from local loads • How environmental forces (wind, waves, current) act on the hull and structure • Principles of loading and weight distribution on floating structures

💭 Think About

• Which option would help reduce overall bending, twisting, and fatigue in the unit’s structure over time, not just change stability characteristics? • Think about whether concentrating weight or spreading it out evenly is better for limiting structural hot-spots (areas of high stress). • Does increasing stability (e.g., metacentric height) always mean less structural stress, or can it sometimes increase motions and loads?

✅ Before You Answer

• Identify which choice deals with how loads/weights are distributed throughout the structure. • Check which option might create local high-stress areas rather than relieve them. • Consider whether the option that changes stability (GM) necessarily reduces structural stress, or might actually increase dynamic loads in some sea conditions.