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The _______ corrosion occurs when two dissimilar metals are in electrical contact with each other and exposed to an electrolyte.

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The _______ corrosion occurs when two dissimilar metals are in electrical contact with each other and exposed to an electrolyte.

(a) Galvanic corrosion

(b) High temperature oxidation

(c) Dry corrosion

(d) Electrochemical corrosion

The question was posed to me in semester exam.

The above asked question is from Cement Concrete Construction in chapter Cement Concrete Construction of Construction & Building Materials

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Correct choice is (a) Galvanic corrosion

To explain I would say: Whereas, the rusting of ferrous alloys at high temperatures from scales and oxides. It indicates high temperature dry corrosion.

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