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Briquetting of loose agricultural residues is carried out to

  • A.Raise the bulk density for transport
  • B.Raise the calorific value per unit mass
  • C.Remove the ash
  • D.Increase the moisture content

Answer: A

Compaction does not change the energy in a kilogram at all, but it transforms the energy in a cubic metre, which is what makes transport and stoking practical. Binderless screw and piston presses are the machines usually employed.

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