Which type of metals can resist corrosion and deterioration?

• A. Ferrous metals
• B. Nonferrous metals
• C. Both ferrous and nonferrous metals
• D. None of the above

Answer: (C)

The ability to resist corrosion and deterioration significantly depends on the material's composition and characteristics. Nonferrous metals, which include aluminum, copper, and titanium, are well-known for their natural resistance to corrosion due to the oxidation process that creates a protective oxide layer. This property is beneficial in aviation, where exposure to moisture and other environmental factors is common.

Ferrous metals, while they can be made resistant to corrosion through various treatments like galvanization or the application of protective coatings, are generally more prone to rust and degradation than nonferrous metals. However, when considering the overall category, both ferrous and nonferrous metals can be engineered or treated in ways that enhance their resistance to corrosion and deterioration.

Thus, since both categories have metals that can effectively resist corrosion and deterioration when properly treated or chosen for specific applications, the correct response is that both ferrous and nonferrous metals can possess this quality under the right conditions.