Safety, Fire & Survival · Damage Control — Watertight Doors
At sea, watertight doors in subdivision bulkheads should generally be:
- ALeft open for ventilation
- BKept closed except briefly when in use, to preserve watertight integrity✓ Correct
- CRemoved and stowed
- DWedged open for quick access
Explanation
Watertight doors are kept closed underway to maintain the subdivision that keeps the ship afloat if holed; they are opened only momentarily for passage. Many are power-operated and can be closed remotely from the bridge, with position indicators showing their status.
Authority: SOLAS II-1
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