Multiple choice

Which alloy is composed of aluminium, copper and magnesium?

  1. Bronze

  2. Duralumin

  3. Magnalium

  4. Monel
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Duralumin is a strong, lightweight alloy composed primarily of aluminium (about 95%), with copper (about 4%), magnesium (about 0.5%), and manganese. It was developed for aircraft construction and other applications requiring high strength-to-weight ratio. Bronze contains copper and tin, magnalium is aluminium-magnesium, and monel is nickel-copper.

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