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Q7. With reference to equipment supplied to detect and combat hold fires in dry cargo ships:

a) Describe, for a ship that carries dangerous cargo, the bridge-based detection arrangement, (10)

b) Explain how fires described in (a) above are dealt with bearing in mind that cargo quantity varies. (10)

Q4. a) CO₂ is to be released in engine room in case of fire. Briefly describe steps taken before it can be released. What means are provided to prevent inadvertent release of CO₂ in engine room? (12)

b) Briefly discuss the procedure for re-entering the engine room after the release of CO₂. (8)

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2024/JUL/02

Q2. a) C02 is to be released in engine room in case of fire. Briefly describe steps taken before it can be released. (7)

b) What means are provided to prevent inadvertent release of CO₂ in engine room? (7)

c) How the number of CO₂ bottles required for a ship is calculated? (6)

Q5. a) Briefly describe the cargo hold fire detection system on a bulk carrier, and how does the system function to detect and alert the crew to the presence of a fire? (10)

b) Give reasons why fire detectors in cargo holds differ from those in machinery spaces. (5)

c) Describe how to verify that each is in working order. (5)

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2018/JAN/02

Q2. (a) Give reasons why fire detectors in cargo holds differ from those in machinery spaces. (b) Describe how to verify that each is in working order.

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)