Question: This is a closed-book, closed-note quiz. Write your an- 4. Which mining method is generally the most economswers on the attached answer sheet, and submit

This is a closed-book, closed-note quiz. Write your an- 4. Which mining method is generally the most economswers on the attached answer sheet, and submit it for ical for ore bodies located near the surface? grading. Choose from the following answers: A. adit B. beneficiation 5. What is the term for the solid product from filtration? C. calcining D. comminution E. extract 6. What is a horizontal mine entrance? F. filter cake G. filtrate H. flotation I. gangue J. in situ leaching K. lixiviant L. oxidant 8. What is another name for uranium ore concentrate M. oxidation (UOC)? N. precipitant O. raffinate P. reduction Q. solvent 9. Which process decreases the oxidation state of a species? R. solute S. surface mining T. underground mining U. shaft 10. What is the process by which a solid is heated to high V. yellowcake temperature to drive off volatile substances? 1. What is the term for waste material removed during beneficiation? 11. What is the term for a substance that is added to a liquid solution to cause a solid to crystallize out of the solution? 2. What is general term for size reduction of ore? 12. A purification process takes an input stream and produces two output streams. One of the outputs is called the extract; what is the other called? 3. What is another name for a leachant

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