Exam Question
(a) Sketch a transverse section through a duct keel labeling its component parts. Indicate the duct keel’s position in the ship structure. (8)
(b) Explain why duct keels are fitted. (8)
Class 4 (4th Engineer)
SC&S
📅 Oct 2024
Reference Answer
### (a) Transverse Section of a Duct Keel
A transverse section through a ship's double bottom at the centerline, showing a duct keel, would include the following labeled components. The duct keel is an integral part of the ship's hull structure, forming a box-like tunnel within the double bottom, extending longitudinally along the ship's centerline, typically from the engine room forward bulkhead to the collision bulkhead.
**Components to be Labeled on the Sketch:**
1. **Keel Plate:** The bottom-most plate forming the base of the ship's structure and the bottom of the duct keel.
A transverse section through a ship's double bottom at the centerline, showing a duct keel, would include the following labeled components. The duct keel is an integral part of the ship's hull structure, forming a box-like tunnel within the double bottom, extending longitudinally along the ship's centerline, typically from the engine room forward bulkhead to the collision bulkhead.
**Components to be Labeled on the Sketch:**
1. **Keel Plate:** The bottom-most plate forming the base of the ship's structure and the bottom of the duct keel.
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play