USCG Exam Practice · Vessel stability — metacentric height, free surface
According to 46 CFR §28.510, downflooding is defined as the entry of seawater through any opening into the hull or superstructure of an undamaged vessel due to which of the following?
- ACollision damage or structural failure
- BHeel, trim, or submergence of the vessel✓ correct
- CWave action over the weather deck only
- DProgressive flooding from an adjacent compartment
Why B is correct
46 CFR §28.510 defines downflooding as the entry of seawater through any opening into the hull or superstructure of an undamaged vessel due to heel, trim, or submergence. The definition specifically applies to an undamaged vessel, excluding collision or structural failure scenarios.
Cited:46 CFR §28.510
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