Light weight metallic alloy used in aircraft industry is________________?
Correct answer: C. Duralumin
- A. Aluminium
- B. High silicon (14%) iron
- C. Duralumin
- D. Phosphor bronze
Explanation
Duralumin is a lightweight aluminium-copper alloy with good strength, making it suitable for aircraft structures. Pure aluminium is light but does not provide the same structural strength, while the other options are not standard aircraft light alloys.
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