Exam Question
(a) What are the purposes of providing Forepeak and aft peak tanks? (6)
(b) Draw a simple sketch of the aft peak tank with all the relevant structural members clearly labeled. (10)
Class 4 (4th Engineer)
SC&S
📅 Oct 2023
Reference Answer
### (a) Purposes of Forepeak and Aft Peak Tanks (6 Marks)
Forepeak and Aft Peak tanks are the foremost and aftermost tanks in a vessel, respectively. They serve several critical functions related to stability, structural integrity, and safety.
1. **Ballast and Trim Adjustment:** This is their primary purpose.
* **Ballast:** They are filled with seawater to adjust the ship's draft and stability, particularly in light ship conditions. This ensures proper propeller immersion, prevents excessive windage, and improves seakeeping characteristics by reducing slamming and pounding.
Forepeak and Aft Peak tanks are the foremost and aftermost tanks in a vessel, respectively. They serve several critical functions related to stability, structural integrity, and safety.
1. **Ballast and Trim Adjustment:** This is their primary purpose.
* **Ballast:** They are filled with seawater to adjust the ship's draft and stability, particularly in light ship conditions. This ensures proper propeller immersion, prevents excessive windage, and improves seakeeping characteristics by reducing slamming and pounding.
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