choose the correct answer :

for an earth dam with water level behind the dam of $6m$ given that angles are $45$

degree on both sides top width $3m$ and the total height of dam $7m$ if permeability factor

is $0\mathrm{.}006m\frac{m}{m}in$ find the speed of flow at the exit

An earth dam has the conflgurations shown in the foure, Given that $L$ gquals $1\mathrm{.}19m$ and $k$ equals

Select one:

a$.0\mathrm{.}222$

b$.0\mathrm{.}232$

c$.0\mathrm{.}333$

d$.0\mathrm{.}323$

In the particle$-$size distribution curve shown below, the effective sixe is close to

mm$.$

Select one:

a$.0\mathrm{.}15$

b$.0\mathrm{.}21$

c$.0\mathrm{.}09$

d$.0\mathrm{.}12$