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Which of the following methods is/are used for the surface preparation of a specimen?(a) Polishing belts(b) Emery papers(c) Electrolytic polishing(d) Polishing belts, emery papers, and electrolytic polishingI got this question during an online exam.My question is based upon Testing in chapter Corrosion Testing of Corrosion Engineering

Answer»

The correct answer is (d) POLISHING belts, emery papers, and electrolytic polishing

For explanation I would say: The surface FINISH of the specimen is one of the FACTORS of CORROSION. Surface preparation of a specimen can be done by using polishing belts, emery papers, and electrolytic polishing.



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