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_____ is/are used to measure the extent of pitting corrosion.

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_____ is/are used to measure the extent of pitting corrosion.

(a) MPY

(b) MDD

(c) Both MPY and MDD

(d) MPK

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This question is from Corrosion Rate Expression in division Corrosion Principles of Corrosion Engineering

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Best answer
Correct choice is (a) MPY

Explanation: Pitting corrosion involves loss of metal at the selected spots on the surface of a metal. It penetrates into various depths based on the concentration of corrosive medium and nature of metal. MPY measures penetration range.

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