Electric poles are coated with a layer of which metal ?

Options

A. Chrmomium
B. Zinc
C. Silver
D. Aluminium

Answer

**Step-by-Step Solution:**

1. **Understanding the Purpose of Coating**: Electric poles are exposed to various environmental conditions, which can lead to corrosion. To prevent this, a protective layer is applied.

2. **Identifying the Coating Material**: Among the options provided (chromium, zinc, silver, aluminum), we need to determine which metal is commonly used for coating electric poles.

3. **Researching Common Practices**: It is known that zinc is often used for galvanizing, which is a process that involves coating iron or steel with zinc to prevent rusting.

4. **Conclusion**: Based on the information gathered, the metal that electric poles are coated with is zinc. This coating helps in preventing corrosion and extends the life of the poles.

**Final Answer**: Electric poles are coated with a layer of zinc.

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