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The machine that separates groundnut kernels from their shells is a _____.

  • A.sheller
  • B.thresher
  • C.winnower
  • D.decorticator

Answer: D

Correct answer: decorticator

A decorticator cracks the groundnut shell and separates the kernels from it, usually with a beater working against a screen sized to the crop.

The beater clearance is the critical setting: tighter cracks more shells but breaks more kernels, and broken kernels are worth appreciably less. A sheller removes maize kernels from the cob, a thresher detaches grain from heads and straw, and a winnower separates grain from chaff by air - four different machines for four different separations.

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