🔍 Key Concepts

• Mean draft and how it differs from forward and aft draft • What a kip is in naval architecture (unit of force/weight) • Standard term for the weight required to change draft a specific amount

💭 Think About

• Think about which option looks like a standard naval architecture abbreviation used for weight to change draft, not a distance or a geometric property like metacentric height or radius. • Ask yourself: which of these is commonly paired with "per inch" of immersion or change in draft when loading weight? • Recall typical abbreviations used in stability and trim calculations: which one specifically connects added weight (kips) to a 1‑inch change in draft?

✅ Before You Answer

• Verify which abbreviations you know: GM, KM, KMT, MT1 inch, TPI and how they’re normally written. • Check that the correct term must involve: a weight (kips) causing 1 inch change in mean draft, not trim or moment. • Eliminate any options that are normally associated with metacentric heights or radii rather than weight-per-inch relationships.