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An indented cylinder separator separates seeds principally on the basis of

  • A.Density
  • B.Colour
  • C.Length
  • D.Width

Answer: C

Correct answer: Length

An indented cylinder separates on length. The indents in the cylinder wall are sized to hold a short seed but not a long one, so as the cylinder rotates the short seeds are lifted clear of the bed and drop into a trough set at the appropriate height, while the long seeds fall back before reaching it.

This is the only common separation that works on length, which makes the machine valuable for removing broken kernels, or weed seeds that match the grain in width and thickness but differ in length.

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