Work index is defined as the_________________?

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

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

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

D. ses a 200 mesh screen

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

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

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