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Pick out the wrong statement: | |
A. | Magnetic separation method can be employed to treat both dry & wet ores. [Wrong Answer] |
B. | Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the maximum product size. [Correct Answer] |
C. | Gyratory crusher is used for coarse crushing. [Wrong Answer] |
D. | Screens are of stationary, moving and vibratory types. [Wrong Answer] |