Duralumin is an alloy of_________________?
Correct answer: A. Aluminium, copper and manganese
- A. Aluminium, copper and manganese
- B. Aluminium, nickel and silicon
- C. Aluminium and nickel
- D. None of these
Explanation
Duralumin is primarily an aluminium-copper alloy strengthened by additions including manganese, and conventional descriptions commonly list aluminium, copper and manganese. Some formulations also contain magnesium, but option a is the intended choice.
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