Exam Question
(a) What are the vulnerable areas on the main deck of a vessel that causes water ingress into the vessel? (8)
(b) What steps are taken in a vessel such vulnerable areas are not a threat to water tight integrity? (8)
Class 4 (4th Engineer)
SC&S
📅 Jan 2023
Reference Answer
### (a) Vulnerable Areas on the Main Deck Causing Water Ingress (8 Marks)
The main deck is a primary barrier against the sea. Its watertight integrity is paramount for the safety of the vessel, crew, and cargo. Several key areas are inherently vulnerable to water ingress due to their function, design, and exposure to the elements.
1. **Cargo Hatch Covers and Coamings:**
* **Sealing Arrangements:** The rubber packing seals between the hatch cover panels and the coaming compression bars are the most critical point. Damage, perishing, or loss of resilience in the rubber, or corrosion and deformation of the steel compression bar, will lead to leaks.
The main deck is a primary barrier against the sea. Its watertight integrity is paramount for the safety of the vessel, crew, and cargo. Several key areas are inherently vulnerable to water ingress due to their function, design, and exposure to the elements.
1. **Cargo Hatch Covers and Coamings:**
* **Sealing Arrangements:** The rubber packing seals between the hatch cover panels and the coaming compression bars are the most critical point. Damage, perishing, or loss of resilience in the rubber, or corrosion and deformation of the steel compression bar, will lead to leaks.
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