Which pair of terms is used to describe deck shaping that helps water move across or along the deck?

• A. Camber, sheer
• B. Deck, bulwark
• C. Scupper, bulwark
• D. Keel, hull

Answer: (A)

Water-shedding along a deck is described by two shaping concepts: camber and sheer. Camber is the slight arch across the deck’s width, which makes water run toward the sides rather than pooling in the middle. Sheer is the longitudinal curve along the deck’s length, guiding water toward the bow and stern so it can drain off more easily. Together, these terms capture how the deck is shaped to move water across or along its surface.

The other terms refer to parts rather than shaping: bulwark is the protective side wall, scupper is a drainage opening, and keel or hull relate to underwater structures. Those don’t describe deck shaping for water movement.