At a mine

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Across
  1. 5. fluid, It is a liquid that cools down the drill bit and washes away loose material in a borehole.
  2. 7. Mechanical supports include timber sets, steel .... , and yieldable steel arches.
  3. 8. cage, It brings miners to the bottom of the mine and takes them up after the shift.
  4. 9. balls, It is a large, heavy ball that is used to break oversize stones into smaller pieces
  5. 10. Design safe ... system for the disposal of waste water.
  6. 14. It is a small passage in a mine that a man passes through.
  7. 16. It is a piece of equipment that makes a bomb explode
Down
  1. 1. It is a wheeled vehicle used for transport in mines
  2. 2. drill, It is a drill that pounds material in order to break it up and allow for easier drilling
  3. 3. line, A queue in which vehicles wait to receive or deliver material
  4. 4. It is a small piece of metal that is used with a nut (= metal piece with a hole in the middle) to connect pieces of wood or metal together.
  5. 6. It is a system that removes dangerous air and provides fresh ar in a mine
  6. 10. hoist, It is a machine that hoist objects by winding a rope around a drum
  7. 11. It is a tool used for navigation.
  8. 12. It is a railroad with one rail from which the train hangs.
  9. 13. Those are the waste left over from extracting minerals. They are usually stacked in a big pile. It often looks like a hill or mountain.
  10. 15. It is a continuous moving piece of rubber or metal used to transport objects from one place to another
  11. 16. point, It is a place where vehicles unload the materials they were carrying.