Doğru Cevap: Net tonnage is the gross tonnage less certain deductions for machinery and other areas.

Açıklama: "Net tonnage is the measure of a ship''s cargo-carrying capacity, while gross tonnage is the total internal volume of the ship. The difference between the two is that gross tonnage includes the volume of non-cargo spaces such as crew quarters, engine rooms, and other areas, whereas net tonnage deducts these areas from the gross tonnage calculation."