Class 4 (4th Engineer) SC&S 📅 Jun 2023

Exam Question

(a) What is the purpose of conducting inclining experiment on a new vessel? (6)

(b) A mass of 6 t is moved transversely through a certain distance on a ship of 4300 t displacement, when the deflection of an 11m pendulum is found to be 120 mm. The transverse meta-centre is 7.25 m above the keel and KG 5.46 m. Find the distance through which 6 t was moved. (10)

Reference Answer

### (a) Purpose of the Inclining Experiment
The inclining experiment is a mandatory practical test performed on a new vessel, or a vessel that has undergone significant modifications, to determine its lightship characteristics accurately. The primary purposes are:
1. **Determination of Lightship Displacement and Center of Gravity (KG):**
* The core objective is to find the precise vertical position of the ship's center of gravity (KG) in its lightship condition (the ship with all its fixed equipment, but without crew, stores, fuel, or cargo).

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