Class 4 (4th Engineer) SC&S 📅 Oct 2022

Exam Question

(a) Draw a simple line diagram of the bow of a ship to show the position of the following component parts of the ship's anchoring system. Hawse pipes, cable stopper, windlass, and cable lifts, spurling pipe and chain locker. (4)

(b) Describe the cable stopper and state its purpose. (4)

(d) Describe how the chain locker is drained of water, sand and mud (4)

Reference Answer

### (a) Anchoring System Layout
The arrangement of a ship's anchoring system is designed for safe and efficient handling of the anchor and cable. The components are positioned in a logical sequence from the point where the anchor enters the water to where the cable is stowed.
* **Hawse Pipe**: A heavy, robust cylindrical or oval pipe passing through the bow plating from the forecastle deck to the shell plating. It is angled to ensure the anchor and cable clear the ship's bulbous bow and stem during operation. It houses the anchor shank when stowed.
* **Cable Stopper (Chain Compressor)**: Located on the forecastle deck, positioned between the hawse pipe and the windlass. It is mounted on a heavily reinforced foundation to transmit the anchoring forces directly to the ship's structure.

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