Q6. Materials used for hull and machinery are subject to stress and strain in service.
(a) In the context, explain the following: (8)
(i) Types of stress. (ii) Types of strain.
(b) Describe the tests that may be carried out on steel to be used for ships side plating. (8)
Q9. What are the differences between destructive and non-destructive testing methods for materials? Discuss the advantages and disadvantages of each approach and provide examples of specific tests used in both categories to ensure the integrity and quality of materials used in shipbuilding. (16)
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