🔍 Key Concepts

• Damaged stability analysis for mobile offshore drilling units (MODUs) like DEEP DRILLER • What is intentionally ignored (disregarded) in a conservative stability assessment • Difference between intrinsic stability of the unit and external aids or actions that might help keep it upright

💭 Think About

• Ask which choice represents something that depends on human action, operational response, or external support rather than the platform’s built‑in geometry and hydrostatics • Consider which items are always present as part of the platform’s form and environment versus which can change or might not be available during an emergency • Think about why regulations require a worst‑case, conservative approach when assessing damaged stability and what types of effects they purposely leave out

✅ Before You Answer

• Identify which option is an active or operational measure rather than a fixed physical characteristic of the platform • Eliminate any options that are simply geometric properties (shape/area) of the structure • Ask yourself which factor a regulation is most likely to say: “do not count this help when you prove you can survive damage.”