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Class 4 (4th Engineer) SSEP 📅 Apr 2023

Exam Question

With reference to equipment supplied to detect and combat cargo hold fires in dry cargo ships;

(a) Describe, for a ship that carries dangerous cargo, the bridge based detection arrangement; (10)

(b) State how fires are dealt with bearing in mind that cargo quantity varies. (10)

Exam question diagram

Reference Answer

### (a) Bridge Based Fire Detection Arrangement
For ships carrying dangerous cargo, a common and SOLAS-approved system is the combined smoke sampling and fixed gas fire-extinguishing system. The bridge-based detection arrangement functions as follows:
**1. Principle of Operation:**
* **Continuous Air Sampling:** The system continuously draws air samples from all protected cargo holds and enclosed spaces.

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