Class 4 (4th Engineer) SSEP 📅 Aug 2023

Exam Question

(a) Where would you expect to find a Dry Powder Extinguisher? (3)

(b) What Safety Equipment should there be at a Bunker Station? (3)

(d) State the capabilities of a Ships Main Fire Pump. (3)

(e) What is regarded as an enclosed space? (3)

(f) What is Boundary Cooling and the reasons for it? (3)

(g) What all pumps in the Engine Room would supply the Fire Main? (2)

Reference Answer

### (a) Location of Dry Powder Extinguishers
Dry Powder Extinguishers are strategically located in areas where specific types of fires are likely to occur. The powder works by interrupting the chemical chain reaction of the fire and, for ABC-type powders, by melting and forming a barrier on the surface of Class A materials.
Typical locations as per statutory and practical requirements include:
* **Engine Room:** Near fuel handling equipment (purifiers, booster pumps), switchboards, and generators. This is because they are highly effective on Class B (flammable liquid) and Class C (electrical) fires, which are the primary risks in a machinery space.

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