For the constant head permeability test presented below:

a$.$ Calculate the hydraulic permeability from the constant head test in $c\frac{m}{sec}.$

b$.$ Calculate Hazen correlated permeability of the soil in $c\frac{m}{s}$ and comment on its validity

c$.$ Would you accept this soil as an A$-1-$b road building material? With what caveat's$/$ qualifications?

$\backslash$table$[[,1,2,3,$Average$],[t(min),8\mathrm{.}47,8\mathrm{.}47,8\mathrm{.}47,8\mathrm{.}47],[Q(c{m}^3),250,257,260,255\mathrm{.}7],[$Diameter$,6\mathrm{.}5,cm,,],[h,3\mathrm{.}8,cm,,],[$Length$,13\mathrm{.}1,cm,,],[D_{10},1\mathrm{.}2,mm,,],[,,,,]]$

Figure $2-$ Permeameter & reservoir set$-$up