Which term describes a metal that contains iron, is usually magnetic and prone to corrosion unless protected?

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Prepare for the WJEC Level 1 and 2 Engineering Exam. Explore multiple choice questions, flashcards, and detailed explanations to enhance your understanding. Get exam-ready today!

Multiple Choice

Which term describes a metal that contains iron, is usually magnetic and prone to corrosion unless protected?

Explanation:
Metallics that contain iron are described as ferrous metals. They’re usually magnetic because iron has magnetic properties, and they tend to corrode (rust) unless they’re protected by coatings, plating, or alloying. This makes ferrous metal the right term for describing a metal that contains iron, is typically magnetic, and is prone to corrosion unless protected. The other options don’t fit: thermoplastics are plastics, not metals; non-ferrous metals do not contain iron; and design for recycling is a design approach, not a metal type.

Metallics that contain iron are described as ferrous metals. They’re usually magnetic because iron has magnetic properties, and they tend to corrode (rust) unless they’re protected by coatings, plating, or alloying. This makes ferrous metal the right term for describing a metal that contains iron, is typically magnetic, and is prone to corrosion unless protected. The other options don’t fit: thermoplastics are plastics, not metals; non-ferrous metals do not contain iron; and design for recycling is a design approach, not a metal type.

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