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All of the following are stock preparation operations EXCEPT

  • A.screening to remove shives and debris
  • B.blending of different pulp furnishes
  • C.cooking the chips in white liquor
  • D.refining to develop fibre bonding

Answer: C

Cooking belongs to pulping and happens long before the stock reaches the paper machine. The other three all prepare the furnish for the headbox. The digester sits at the other end of the mill. Stock preparation ends at the headbox.

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