An alloy used in making bodies of aircraft is

Options

A. duralumin
B. steel
C. amalgam
D. solder

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the alloy used in making the bodies of aircraft.

2. **Review the Options**: The options provided are:
- A) Duralumin
- B) Steel
- C) Amalgam
- D) Solders

3. **Recall the Properties of Alloys**: Consider the properties required for an alloy to be suitable for aircraft bodies. It should be lightweight, strong, and durable.

4. **Evaluate Each Option**:
- **A) Duralumin**: This is an alloy primarily made of aluminum, which is known for being lightweight and strong. It is commonly used in aircraft construction.
- **B) Steel**: While strong, steel is heavier than aluminum and not typically used for aircraft bodies.
- **C) Amalgam**: This is a mixture of metals, often used in dental applications, not suitable for aircraft bodies.
- **D) Solders**: These are used for joining metals but are not used for making aircraft bodies.

5. **Select the Correct Option**: Based on the evaluation, Duralumin (Option A) is the most suitable alloy for making aircraft bodies due to its lightweight and durable properties.

6. **Provide the Composition of Duralumin**:
- Duralumin is composed of:
- 95.5% Aluminum
- 3% Copper
- 1% Manganese
- 0.5% Magnesium

7. **Conclusion**: Therefore, the alloy used in making the bodies of aircraft is **Duralumin**.

**Final Answer**: The alloy used in making bodies of aircraft is **Duralumin**.

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