Question detail
What is sacrificial protection in relation to preventing corrosion?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. Using a less reactive metal to protect iron
- B. Using a more reactive metal to corrode instead of iron
- C. Applying a paint coating to iron
- D. Using a barrier to prevent moisture from reaching iron
Answer
Using a more reactive metal to corrode instead of iron
Explanation
Sacrificial protection involves using a more reactive metal that will corrode in place of iron, thus protecting the iron from rusting.
Common mistake
Misunderstanding Sacrificial Protection
Students often confuse sacrificial protection with barrier protection, thinking that both involve covering iron to prevent corrosion.
Clarify that sacrificial protection involves using a more reactive metal that corrodes instead of iron, while barrier protection involves coating iron with materials like paint or grease.
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