Question 1787 Deck General

The correct answer is A) its sill is at least 30 inches above the deepest load waterline. This is because the regulations for small passenger vessels require that any port lights below the weather deck must have their sill at least 30 inches above the deepest load waterline. This helps prevent water from entering the vessel through the port light during rough weather conditions. The other options are incorrect because: B) the material of the port light is not relevant to this requirement, C) having a solid, hinged cover does not meet the 30-inch sill height requirement, and D) the port light cannot simply be sealed shut as it must still provide a functional opening.