Define corrosion. Describe the importance of corrosion study.
[3 marks]Discuss the effect of anodic area and pH on corrosion rate.
[4 marks]Explain electrochemical theory of wet corrosion with suitable examples of anodic and cathodic reactions.
[7 marks]Define wear and list types of wear.
[3 marks]“Any reduction in wear can result in substantial savings”. Comment.
[4 marks]Define Passivity. Discuss using example of Fe peace in HNO .3
[7 marks]List different types of polarization. Describe the activation polarization.
[7 marks]Write a short note on Calomel reference electrode.
[3 marks]“Corrosion is reverse of extractive metallurgy” Comment.
[4 marks]Describe the Pourbaix diagram for Fe-Water system and its use in corrosion study.
[7 marks]Discuss mechanism of Abrasive wear.
[3 marks]Discuss applications of galvanic series in corrosion studies.
[4 marks]Derive Nernst equation for electrode potential. Describe its use in corrosion study.
[7 marks]Describe methods to prevent inter granular corrosion in stainless steel.
[3 marks]Explain mechanism of inter granular corrosion in stainless steel.
[4 marks]Discuss mechanism and way of prevention of erosion corrosion.
[7 marks]Explain prevention methods against galvanic corrosion.
[3 marks]“Pitting is most dengerous form of corrosion” Comment.
[4 marks]Describe mechanism and way of prevention of crevice corrosion.
[7 marks]Give advantage & application of Galvanizing.
[3 marks]Write a brief note on alteration of environment for corrosion prevention.
[4 marks]Explain sacrificial anode cathodic protection method to combat corrosion.
[7 marks]Discuss the advantages of thermal spraying coating.
[3 marks]Justify the design aspects in corrosion protection with few examples.
[4 marks]Describe electroplating. Explain factors affecting electrodeposition.
[7 marks]