Class 2 (2nd Engineer) SSEP 📅 Apr 2018

Exam Question

The fire protection provided for the propulsion motor and generator of a diesel eleetric drive vessel is usually one of the following methods:

(a) Fixed foam extinguisher (5)

(b) Fixed CO2 system (5)

(d) Dry Chemical Powder (5)

Briefly state in a comparative analysis, how each one of these methods has some disadvantages when used with propulsion system as stated above.

Reference Answer

(a) Fixed Foam Extinguisher:
Most effective only in the horizontal plane.
May cause damage to machinery parts, especially electrical components.
Requires considerable cleaning after use.

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