Which design feature subdivides a ship's hull to limit flooding?

• A. To provide passage between decks.
• B. To store ballast water.
• C. To improve radio communications.
• D. To subdivide the hull to limit flooding and maintain buoyancy.

Answer: (D)

Subdividing a ship’s hull into watertight compartments is the essential design feature for limiting flooding. By using bulkheads to create separate compartments and fitting watertight doors, water can be confined to the damaged section rather than spreading throughout the ship. This preserves buoyancy because enough of the hull remains dry and the remaining compartments continue to provide flotation. In practice, ships often employ additional safety measures like double bottoms or even a double hull for extra protection, but the core idea is that watertight subdivision prevents progressive flooding.

Providing passage between decks would permit water to move more freely through the ship, not contain it. Storing ballast water relates to stability and trim, not flood containment. Improving radio communications has no impact on preventing or limiting flooding.