🔍 Key Concepts

• Difference between weight-based measures (tons of cargo, fuel, people) and volume-based measures (how much space is available) • What gross tonnage actually measures under tonnage regulations • How displacement relates to the total weight of the ship plus everything on board

💭 Think About

• Ask yourself: which option specifically refers to the total carrying capacity by weight of everything the ship can take on board, not counting the ship’s own structure? • Which term is commonly used in cargo planning and loading calculations rather than in regulatory descriptions of ship size or volume? • Which of these terms clearly excludes the lightship weight (the ship itself, empty) and only counts what you can load onto it?

✅ Before You Answer

• Verify which term is defined as the difference between lightship weight and loaded displacement. • Check which term, despite having the word "tonnage," is actually based on enclosed volume, not weight. • Confirm which option is primarily a volume for cargo space measurement rather than a weight measurement.