4 For each of the following situations mention the type of c

4. For each of the following situations mention the type of corrosion which may occur (It could be more than one type).

- Galvanic reactions between two metals

- Stagnant water in a restricted area

- Welding on a painted surface

(a) Galvanic corrosion/Dissimilar Metal Corrosion

(b)General corrosion/Electrochemical Corrosion/Crevice corrosion

(c)Preferential Corrosion