Work index is defined as the_________________?
Correct answer: A. Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of
- A. Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of
- B. the product passes through a 100 micron screen
- C. Energy needed to crush one tonne of feed to 200 microns
- D. Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product
- E. passes a 200 mesh screen
- F. Energy needed to crush one ton of feed to 100 microns
Explanation
Bond's work index is the gross energy in kWh per tonne required to reduce a very large feed until 80% of the product passes a 100-micrometre screen. The displayed option is split across lines, but options a and b together state this definition.
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