What does a boat's capacity plate specify about passengers?

A boat's capacity plate is a vital safety feature that provides critical information regarding the maximum number of people and the total weight that the boat can safely carry. This specification is crucial for ensuring that the boat remains stable and buoyant, which helps prevent accidents or capsizing. Adhering to the capacity indicated on the plate ensures that the boat operates within its designed limits, which is essential for the safety of all passengers on board.

The capacity plate will typically list not only the maximum number of persons allowed but also the maximum weight limit. Exceeding these limits can lead to dangerous situations, particularly in rough waters or during sudden maneuvers. Therefore, understanding this information is fundamental for any boat operator.

In contrast, the other options refer to details that are not related to passenger capacity. The vessel registration number is for identification purposes, the propeller diameter affects performance but does not relate to passenger limits, and the fuel tank size is important for operational efficiency but does not affect the capacity for carrying passengers or cargo.