B$.2\mathrm{.}55$

D$.5\mathrm{.}45$ m

D$.5\mathrm{.}31$ m

Situation $12.$ The field sand cone test was performed, and the folloving data

were obtained:

Yasn $=$ calibrated unit weight of sand $=16\mathrm{.}2k\frac{N}{m^3}$

$V_{\text{c}\text{o}\text{n}\text{e}}=$ calibrated volume of cone $=0\mathrm{.}974{10}^{-3}{m}^3$

$W_{\text{w}\text{e}\text{t}\text{d}\text{o}\text{i}\text{l}}=$ wet soil obtained from the hole $=3\mathrm{.}425kg$

$W_{\text{d}\text{r}\text{y}\text{s}\text{o}\text{l}\text{l}}=$ over$-$dried soil obtained from the hole $=3\mathrm{.}017kg$

Determine the water content of the soil.

A$.10\mathrm{.}5\%$

C$.13\mathrm{.}5\%$

B$.11\mathrm{.}5\%$

D$.12\mathrm{.}5\%$

Determine the volume of the hole.

A$.1\mathrm{.}72{10}^{-3}{m}^3$

C$.1\mathrm{.}62{10}^{-3}{m}^3$

B$.1\mathrm{.}8210-3m^3$

D$.1\mathrm{.}5210-3m^3$