Q12. With reference to the construction of refrigerated spaces:
(a) state suitable materials that can be used for insulating refrigerated spaces; (2)
(b) state the properties that an insulating material should possess; (3)
(c) sketch a section through a wall of a cold storage space detailing how the insulation is attached to the ship's structure. (5)
Q13. With reference to roll reduction systems:
(a) explain the principle of operation of bilge keels, stating their advantages; (4)
(b) describe TWO other methods of roll reduction, stating the advantages and disadvantages of EACH system. (6)
Q14. With reference to the structure of a large passenger ship, describe the requirement for preventing the spread of fire and smoke. (10)
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