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The first operation performed on a delivery of raw material should be

  • A.taking a representative sample for testing
  • B.tipping it directly onto the working stockpile
  • C.charging it straight to the weigh hoppers
  • D.drying it to a constant moisture content

Answer: A

Correct answer: taking a representative sample for testing

Sampling comes first because once the load is tipped onto a stockpile it can no longer be rejected or segregated, and the material is no longer identifiable as that delivery. A sample taken from the vehicle, from several points and combined, is the only thing that lets the load be accepted or turned away on evidence rather than on hope.

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