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What is meant by nomography for corrosion rates?

(a) Formula oriented method to find corrosion rate

(b) A rapid and ready conversion table for various corrosion rate units

(c) Schematic arrangement of corrosion data with the change in temperature and concentration

(d) A specific corrosion rate measurement method

This question was addressed to me during an online interview.

Question is taken from Testing in section Corrosion Testing of Corrosion Engineering

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The correct answer is (b) A rapid and ready conversion table for various corrosion rate units

Best explanation: Nomography for corrosion rate is a table in which it readily converts one corrosion rate unit into another corrosion another unit. Units of corrosion rate are namely mils per year (MPY), milligram sq. Decimeter per day (MDD).

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