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Dry pressing is normally carried out with a powder containing

  • A.a few per cent of moisture and a binder
  • B.around twenty per cent water by mass of the whole
  • C.no additives of any kind at all in the mixture
  • D.more than half of its own mass as liquid water

Answer: A

The term dry is relative: a small amount of moisture and an organic binder are needed for the granules to deform and bond. Twenty per cent would be a plastic body and half would be a casting slip, so the three routes are quite distinct.

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