Mechanical Operations

Pick out the wrong statement.

  • A. Close circuit grinding is more economical than open circuit grinding
  • B. Cod oil, beef tallow or aluminium stearates are used as grinding aids in cement ‘industries’
  • C. The equipment used for the removal of traces of solids from a liquid is called a classifier
  • D. Size enlargement is a mechanical operation exemplified by medicinal tablet making
Answer: Option C.

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