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Q5. a) List the precautions that must be taken before releasing CO₂ into the engine room in the event of a fire. Why is it critical to ensure these steps are followed to safeguard crew and equipment? (7)

b) Describe the actions that should be taken immediately after CO₂ release to manage the fire and prevent re-ignition. (6)

c) Explain the factors that determine the quality of CO₂ required for effective fire suppression in ship’s engine room. Outline the formula and method used to calculate the number of CO₂ bottles needed on board. (7)