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Pick out the wrong statement. | |
A. | Close circuit grinding is more economical than open circuit grinding. [Wrong Answer] |
B. | Cod oil, beef tallow or aluminium stearates are used as grinding aids in cement 'industries'. [Wrong Answer] |
C. | The equipment used for the removal of traces of solids from a liquid is called a classifier. [Correct Answer] |
D. | Size enlargement is a mechanical operation exemplified by medicinal tablet making. [Wrong Answer] |