Class 2 (2nd Engineer) SC&S 📅 Oct 2024

Exam Question

(a) Explain in detail, how an underwater survey is carried out. (6)

(b) State the requirements to be fulfilled before an under-water survey is acceptable to the survey authority. (5)

Reference Answer

(a) An in-water survey, also known as Underwater Inspection in Lieu of Dry Docking (UWILD), involves a systematic and detailed examination of a vessel’s hull and underwater components while the ship remains afloat. The procedure includes the following steps:
The shipowner sends a request to the classification society surveyor, indicating the intention to perform an underwater survey.
A detailed plan of the ship's external hull features is submitted, showing the location of frames, bulkheads, welding lines, openings, etc.
The hull surface is cleaned before the survey to remove any marine growth or fouling that could obscure the inspection.

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