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________ plating is used for protection against wear in lead bearings.

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________ plating is used for protection against wear in lead bearings.

(a) Gallium

(b) Arsenic

(c) Indium

(d) Helium

The question was posed to me in class test.

My doubt is from Mechanical Tests on Metals, Protection Against Wear topic in division Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

1 Answer

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Right choice is (c) Indium

Easiest explanation: The wear resistance of a metal part can be improved by electroplating a harder metal on its surface. The metals often plated on base metals are chromium, nickel, and rhodium. Indium plating is used to reduce wear of lead bearings.

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