Work index is defined as the_________________?

A. ses a 200 mesh screen

B. Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of

C. product passes through a 100 micron screen</strong>

D. Energy needed to crush one tonne of feed to 200 microns

E. Energy needed to crush one ton of feed to 100 microns

F. Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product

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