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The metal aluminium can be ___________ to obtain strength.

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The metal aluminium can be ___________ to obtain strength.

(a) heat-treated

(b) nullified

(c) softened

(d) non-heat treated

The question was asked during an internship interview.

This intriguing question comes from Applications and Advantages of Aluminium topic in portion Wrought Aluminium Alloys of Aerospace Materials & Processes

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The correct option is (a) heat-treated

For explanation: One of the properties of aluminium that is widely applicable is the ability to be heat treated. Aluminium is subjected to heat treatment to increase its performance characteristics as it becomes stronger.

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