MCQ
How is scrap-iron separated from other wastes in a scrap yard:
  • A
    Sublimation
  • B
    Magnetic separation
  • C
    Handpicking
  • D
    Winnowing

Answer

  1. Magnetic separation

Explanation:

Waste materials supplied to factories contain a number of scrap metals including iron ore.

So, in factories, scrap iron is separated from the heap of waste materials by using big electromagnets fitted to a crane.

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