🔍 Key Concepts

• Ground reaction – the portion of the ship’s weight carried by the seabed instead of buoyancy • Use of hydrostatic tables/curves to find displacement at different drafts • Difference between displacement before and after grounding as an indicator of weight supported by the ground

💭 Think About

• Ask yourself: What can a deck officer realistically calculate on board using information already in the stability booklet? • Which method directly compares how much water the ship displaces before and after grounding? • Which options describe tools used for normal stability work versus those meant for specialized design/architect tasks?

✅ Before You Answer

• Identify which choice uses displacement from hydrostatic data at two different drafts. • Eliminate any method that relies on inclining experiment procedures, which are for determining GM and lightship data, not ground reaction. • Watch for answers suggesting tasks done only by a naval architect, and ask if that matches what exam questions expect a ship’s officer to do during an emergency.