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Class 4 (4th Engineer) MEKG 📅 Feb 2023

Exam Question

(a) State the purpose of 'freshwater' and 'salinity water' hydrophore systems on ship (4)

(b) Explain through a line diagram, the functional components and other fittings of 'fresh water' hydrophore system. Also show as to how the calorifier is attached to this system. (8)

(c) Explain as to how is the hydrophore system is charged? Give procedure (4)

Exam question diagram

Reference Answer

### (a) Purpose of 'Freshwater' and 'Salinity Water' Hydrophore Systems
The primary purpose of any hydrophore system on a ship is to provide a pressurized water supply to various services, acting as a buffer or accumulator. This design avoids the frequent starting and stopping of pumps for minor demands, reducing wear and tear and energy consumption. It stores water under pressure, providing instant availability at outlets.
**1. Freshwater Hydrophore System:**
* **Function:** To store and supply potable (fresh) water under constant pressure to all accommodation and service spaces.

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