Question 289Safety & Environmental - 1st Asst/Chief
70% to passYour vessel is loading cargo and you are monitoring the stability and trim. Currently, the Longitudinal Center of Buoyancy (LCB) is vertically aligned and below the Longitudinal Center of Gravity (LCG). The Longitudinal Center of Flotation (LCF) is aft of both of these. How is the vessel trimming?
ATrim by the bow about the LCF.
BVessel trims level.
CTrim by the bow about the LCB.
DTrim by the stern about the LCF.
AI Explanation
The correct answer is B) Vessel trims level. When the Longitudinal Center of Buoyancy (LCB) is vertically aligned and below the Longitudinal Center of Gravity (LCG), and the Longitudinal Center of Flotation (LCF) is aft of both, the vessel will trim level. This is because the longitudinal forces acting on the vessel are in equilibrium, with the buoyant force centered below the weight force, resulting in no trimming moment. The other options are incorrect because they describe trimming scenarios that would require the LCB and LCG to be in different vertical positions relative to each other, or the LCF to be forward of the other two points.
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