Question 6 Answer the following questions using short answers. Sketches should be used where necessary. a) A stainless-steel plate is fastened with mild steel bolts and exposed to sea water. Explain what is likely to occur. b) Explain what uniform corrosion is and why it occurs? c) A steel plate in a ships bilge is exposed to drops of oil and other organic material. Name two types of corrosion should be expected. d) List three examples of design considerations that should be adopted to reduce the likelihood of corrosion occurring. e) Explain cathodic protection and name two examples of how it is applied in the maritime industry. f) What is the purpose of steel reinforcement within concrete and what are two typical methods for using steel reinforcement? g) Why is it important to ensure the correct water:cement ratio when mixing concrete? h) Name four common methods for strengthening polymers. i) What are the differences between thermoplastic and thermoset polymers? j) Describe a sandwich composite and explain the role of each of the components k) Explain how the orientation of the fibres impacts on the strength of a composite panel