Which two terms describe the deck shaping that allows water to move freely across or along the deck in a heavy sea?

Which two terms describe the deck shaping that allows water to move freely across or along the deck in a heavy sea?

• A. Camber, sheer
• B. Bulwark, scupper
• C. Deck, hull
• D. Rake, bow

Answer: (A)

Water drainage on a deck in heavy seas is controlled by its curvature in two directions. Camber is the curve across the deck from side to side, which makes water run toward the bulwarks and off the deck rather than pooling in the middle. Sheer is the curve along the length of the deck from bow to stern, so water can flow toward the ends and toward any drains, helping it move along the deck. Together, these two shaping concepts describe how the deck is designed to shed water efficiently in rough conditions. Structures like bulwarks and scuppers are related to drainage, but they aren’t the deck’s shaping itself, and terms like deck and hull or rake and bow refer to other features or orientations.

Water drainage on a deck in heavy seas is controlled by its curvature in two directions. Camber is the curve across the deck from side to side, which makes water run toward the bulwarks and off the deck rather than pooling in the middle. Sheer is the curve along the length of the deck from bow to stern, so water can flow toward the ends and toward any drains, helping it move along the deck. Together, these two shaping concepts describe how the deck is designed to shed water efficiently in rough conditions. Structures like bulwarks and scuppers are related to drainage, but they aren’t the deck’s shaping itself, and terms like deck and hull or rake and bow refer to other features or orientations.