Class 4 (4th Engineer) SSEP 📅 Mar 2023

Exam Question

Using a simple sketch, describe the fire main of a ship with which you are familiar. Include in your answer:

(a) The number and type of pumps (5)

(b) Pipe materials (5)

(d) Location of the international shore connection (5)

Reference Answer

### Description of a Ship's Fire Main System
The fire main is a high-pressure piping system that extends throughout the vessel, providing a ready supply of seawater to fire hydrants, monitors, and sprinkler systems. Its primary purpose is to deliver a large volume of water to extinguish fires onboard. The system is designed and maintained in accordance with SOLAS (Safety of Life at Sea) regulations to ensure reliability in an emergency.
### (a) The Number and Type of Pumps
The number and capacity of fire pumps are dictated by SOLAS regulations, based on the ship's type and gross tonnage. For a typical cargo ship of over 1000 GRT, the arrangement is as follows:

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