The Oxidation of Iron to Rust Is a Problem Structural

question 99

Multiple Choice

The oxidation of iron to rust is a problem structural engineers need to be concerned about,but the oxidation of aluminum to aluminum oxide is not so much of a problem.Why?

• A)Since aluminum is so light and inexpensive,it is easily replaced when corroded.
• B)Aluminum oxide is insoluble in water and thus forms a protective coating that prevents continued oxidation of the aluminum.
• C)Aluminum oxide is even stronger than aluminum.
• D)The oxidation of aluminum is a very slow reaction,taking hundreds of years before any structural changes are noticed.

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Definitions:

Phonetic Alphabet

A system of writing developed by early Greeks that uses letters to represent spoken sounds, enabling the expression of complex ideas.

Complex Ideas

Thoughts or concepts that are intricate and composed of multiple interconnected elements, often requiring significant understanding or analysis.

Spoken Sounds

The auditory elements or phonetic units used in oral communication to convey language and meaning.

Telegraph Lines

Historically significant communication system that transmitted electrical signals over wires between distant locations to convey messages.