Class 4 (4th Engineer) SC&S 📅 Dec 2024

Exam Question

In the absence of external forces, adding weight to one side of a floating vessel, will cause the vessel to (16)

(a) Heel until the angle of loll is reached

(b) List until the centre of buoyancy is aligned vertically with the centre of gravity

(d) Decrease draft at the centre of flotation

Briefly Justify Your Answer

Reference Answer

The correct answer is **(b) List until the centre of buoyancy is aligned vertically with the centre of gravity**.
### Justification for the Correct Answer (b)
This answer correctly describes the principles of transverse static stability when a vessel's internal weight distribution is altered.
1. **Initial State**: In a stable, upright vessel without any external forces, the center of gravity (G) and the center of buoyancy (B) are in the same vertical line, typically on the vessel's centerline. The total weight of the vessel (Displacement, Δ) acts downwards through G, and the total buoyant force acts upwards through B.

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