Same chapter3 marksDifficulty: Medium
Name the constituents and one use of brass, bronze and duralumin.
Metallurgy
2 marksDifficulty: Medium
State two properties of aluminium that make it suitable for making aircraft bodies.
Original Khojo Papers practice question — not from a past board paper.
Answer
Aluminium has a low density, so the aircraft is light, and it resists corrosion because of the protective oxide layer that forms on its surface. Alloyed as duralumin it is also strong.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
It is also a good conductor of heat, which helps in other uses such as cooking utensils.
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