Q12. (a) Describe the stresses that the hull of an ocean-going vessel is subjected to when it encounters heavy weather. (5)
(b) Explain the constructional details of ships which resist the stresses described in part (a). (5)
Q13. (a) With reference to bilge keels:
(i) describe how the design and method of attachment reduces the possibility of damage to the shell plate; (5)
(ii) state what testing must be carried out. (2)
(b) Explain why the bilge keels do not extend the full length of the vessel. (3)
Q14. With reference to tank inspections:
(a) list SIX items that should be looked for in a tank inspection; (3)
(b) state where erosion would be found in ballast tanks; (2)
(c) write a procedure for enclosed space entry. (5)
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