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Q3. (a) Sketch and describe a non-portable 136-liter foam fire extinguisher (8)

(b) Briefly explain how to operate the foam extinguisher (3)

(c) State the two constituents used, which enable stable foam to be produced (3)

(d) State for what approximate length of time, the engine should generate foam (3)

(e) Where on board ship would you expect such an extinguisher to be located (3)