Question 204Safety & Environmental - 1st Asst/Chief

70% to pass

As chief engineer you should understand the concept of corrective measures and their purpose. The following four actions will have which affect on the vessel? 1

ARemove high weight symmetrically. 3
BEliminate any free surface present.
CTo correct for the trim of a vessel to achieve parallel sinkage.
DTo correct for the trim of a vessel to achieve a desired trim by the head.
AI Explanation

The correct answer is C) To correct for the trim of a vessel to achieve parallel sinkage. Parallel sinkage refers to the condition where a vessel sinks evenly, without changing its trim (the difference in draft between the bow and stern). Correcting the trim to achieve parallel sinkage is an important principle in maintaining the stability and safe operation of a vessel. This is done by adjusting the distribution of weight on board to ensure the vessel sinks evenly, rather than pitching up or down. The other options are incorrect because: A) Removing weight symmetrically affects stability but does not necessarily correct trim, B) Eliminating free surface affects stability but not trim, and D) Correcting trim to a desired angle (rather than parallel sinkage) is a different objective.

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Official Resources
46 CFR Safety Equipment USCG Environmental Standards USCG National Maritime Center
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