Class 4 (4th Engineer) SSEP 📅 Jun 2023

Exam Question

(a) Name the types of portable fire extinguishers used on board ships (5)

(b) State the use of the named type of extinguishers for extinguishing the concerned type of fire. (5)

(c) Sketch and describe a mechanical foam type of extinguisher, naming the components and material used to generate foam. (10)

Reference Answer

### (a) Types of Portable Fire Extinguishers
As per the International Code for Fire Safety Systems (FSS Code), the common types of portable fire extinguishers found on board ships are classified by their extinguishing medium:
1. **Water Type Extinguishers**: Utilise water, often with additives, for cooling Class A fires.
2. **Foam Type Extinguishers**: Employ a foam solution (e.g., AFFF) to smother and cool Class A and B fires.

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