Question $1(8$ marks$)$

As a metallurgist you been asked to determine the screening efficiency of the $10mm$ screen. The feed, oversize and undersize samples were taken and sized with the following data generated.

a$)$ Conduct size analysis of each product to represent the data.

b$)$ Determine the efficiencies $E_U,E_O,$ and $E$ of this $10mm$ screen?

$\backslash$table$[[$Aperture$,$Feed,Oversize,Undersize$],[$mm$,$Mass $($kg$),$Mass $($kg$),$Mass $($kg$)],[40,8,15,0],[28,25,25,0],[20,120,95,2],[14,242,170,10],[10,370,290,30],[7,180,55,120],[5,155,30,138],[3\mathrm{.}5,160,10,150],[2\mathrm{.}5,120,8,120],[1\mathrm{.}8,90,1,100],[-1\mathrm{.}8,30,1,30]]$