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Civil Engineering PE

Category - Struct. Materials

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Steel that is used in building construction is composed of iron and which of the following alloying materials?

Carbon
Nickel
Silicon
Boron

Explanation

Answer: A - Steel that is used in building construction is composed of iron and carbon. The other elements (nickel, silicon, and boron) may be included in alloy steel, in addition to iron and carbon. The degree of alloy determines the steel’s hardenability and corrosion resistance.

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