Solved: Question 2 A Gold Ore Is Screened Through A 32 Mm. Question 2 A gold ore is screened through a 32 mm screen The average size distribution of the feed, oversize and undersize were graphed below The minus 32 size fractions of feed, undersize and oversize were determined to be 55%, 92% and 8% respectively Determine the efficiency of the screen 100 90 80 70 a 60 50 o 40 30 20 10 Undersize