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Which of the following environmental factor plays an important role in erosion-corrosion?

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Which of the following environmental factor plays an important role in erosion-corrosion?

(a) Velocity

(b) Corrosive concentration

(c) pH of the environment

(d) Relative humidity of the atmosphere

I have been asked this question in homework.

I would like to ask this question from Eight Forms topic in portion Eight Forms of Corrosion of Corrosion Engineering

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Correct choice is (a) Velocity

Explanation: Erosion corrosion accelerates the rate of attack on a metal because of relative movement between corrosive fluid and the metal surface. It increases as the velocity of the corrosive solution increases.

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