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What is the disadvantage of wet analysis?

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What is the disadvantage of wet analysis?

(a) Inaccuracy

(b) Time-consuming

(c) Not suitable for iron-carbon alloys

(d) Causes fatigue

I have been asked this question during an interview.

Asked question is from Metal Composition Testing, Inspection of Materials topic in chapter Testing of Materials, Foundry & Powder Metallurgy of Engineering Material & Metallurgy

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Right answer is (b) Time-consuming

Best explanation: Wet analysis is a method of testing for mechanical composition. This technique is accurate but is time-consuming. Wet techniques for iron-base and copper alloys are straightforward. However, there are difficulties measuring boron in boron-treated steels, magnesium in ductile iron, and for carbon contents less than 0.04%.

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