Data and Information for Problems $3$ to $4$

A sieve analysis was conducted on quartz sand delivered to a water treatment facility for use in rapid nate gravity filters. Results are reported in the table below and are graphically represented in the figure below the table.

$\backslash$table$[[\backslash$table$[[$Sieve Number $(mm$ size$],[$opening$)]],\backslash$table$[[\%$ weight$],[$passing$]]],[14(1\mathrm{.}41),100],[16(1\mathrm{.}19),100],[18(100),94],[20(0\mathrm{.}841),86],[25(0\mathrm{.}710),57],[30(0\mathrm{.}595),30],[35(0\mathrm{.}500),8],[40(0\mathrm{.}420),3],[45(0\mathrm{.}350),1],[50(0\mathrm{.}297),0]]$

$2$

$3.$ Based on the dara provided, the effective size $($ia mm$)$ of the delivered material is most nearly?

A$.0\mathrm{.}10$

B$.0\mathrm{.}35$

C$.0\mathrm{.}51$

D$.0\mathrm{.}92$

E$.10$

F$.$ So

C$.60$

$4.$ Based on the data provided, the uniformity ceefficient $($UC$)$ for the sand filter media is most nearly?

A$.0\mathrm{.}1$

B$.0\mathrm{.}51$

C$.0\mathrm{.}72$

D$.1\mathrm{.}4$

E$.6$

f$.10$Data and Information for Problems $3$ to $4$

A sieve analysis was conducted on quartz sand delivered to a water treatment facility for use in rapid rate gravity filters. Results are reported in the table below and are graphically represented in the figure below the table.

$\backslash$table$[[\backslash$table$[[$Sieve Number $($mm size$],[$opening$)]],\backslash$table$[[\%$ weight$],[$passing$]]],[14(1\mathrm{.}41),100],[16(1\mathrm{.}19),100],[18(1\mathrm{.}00),94],[20(0\mathrm{.}841),86],[25(0\mathrm{.}710),57],[30(0\mathrm{.}595),30],[35(0\mathrm{.}500),8],[40(0\mathrm{.}420),3],[45(0\mathrm{.}350),1],[50(0\mathrm{.}297),0]]$

Based on the data provided, the effective size $($in $m{m}_1)$ of the delivered material is most nearly?

A$.0\mathrm{.}10$

B$.0\mathrm{.}35$

C$.0\mathrm{.}51$

D$.0\mathrm{.}92$

E$.10$

F$.50$

G$.60$

Based on the data provided, the uniformity coefficient $($UC$)$ for the sand filter media is most nearly?

A$.0\mathrm{.}1$

B$.0\mathrm{.}51$

C$.0\mathrm{.}72$

D$.1\mathrm{.}4$

E$.6$

F$.10$