Deck General · Ship Construction
The longitudinal backbone member running the length of a ship's bottom is the:
- AKeel✓ Correct
- BSheer strake
- CGunwale
- DTransom
Explanation
The keel is the primary longitudinal strength member at the bottom centerline. Frames rise from it, the sheer strake is the topmost side plate, and the transom is the flat stern structure.
Authority: Knight's Modern Seamanship; principles of naval architecture
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