Exams › SSC CGL (Prelims) › General

Why is aluminium widely used in aircraft construction?

1. High density
2. Corrosion resistance and light weight
3. Low melting point
4. Magnetic properties

Correct answer: Corrosion resistance and light weight

Solution

Aluminium is preferred in aircraft because it has low density, which reduces the overall weight of the aircraft, and it resists corrosion due to the protective oxide layer formed on its surface. These properties improve fuel efficiency and durability.

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