🔍 Key Concepts

• Master’s overall safety responsibility under SOLAS for watertight integrity • Difference between maintenance requirements and voyage‑specific checks • When SOLAS explicitly requires a log book entry for doors or openings affecting watertight subdivision

💭 Think About

• Ask yourself: which option sounds like a continuous general duty of the Master, rather than a very specific routine or condition? • Compare: does SOLAS usually demand daily testing, or does it focus on having a planned, effective system in place? • Which choices add extra conditions (presence of an officer, specific log entry timing) that might go beyond or more specific than the usual SOLAS wording?

✅ Before You Answer

• Check SOLAS provisions on watertight doors and maintenance systems rather than only on operating procedures • Verify whether SOLAS speaks about testing frequency (e.g., daily vs. periodically) for these doors • Confirm exactly where SOLAS requires logbook entries and whether this applies to cargo hold watertight doors in the way some choices describe