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Doctors Medicines MCQs Q&A

  1. 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
  2. 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
  3. 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
  4. 5 to 6% tin, 2 to 3% copper and rest aluminium
  5. 63 to 67% nickel and 30% copper
  6. 88% copper, 10% tin and rest zinc
  7. Alloy of tin, lead and cadmium
  8. Iron scrap and zinc
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1 Answers

Answer: Option 1

In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium. For instance, Duraluminium 2024 consists of 91-95% aluminium, 3.8-4.9% copper, 0.3-0.9% manganese, 1.2-1.8% magnesium,

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