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Crushing efficiency is the ratio of the | |
A. | surface energy created by crushing to the energy absorbed by the solid. [Correct Answer] |
B. | energy absorbed by the solid to that fed to the machine. [Wrong Answer] |
C. | energy fed to the machine to the surface energy created by crushing. [Wrong Answer] |
D. | energy absorbed by the solid to the surface energy created by crushing. [Wrong Answer] |