5. Earth Resources

Groundwater — Quiz

Test your understanding of groundwater with 5 practice questions.

Practice Questions

Question 1

Using Darcy's law $Q=K\,i\,A$, calculate the groundwater discharge $Q$ in $\mathrm{m^3/day}$ if $K=5\times10^{-5}\,\mathrm{m/s}$, $i=0.02$, and $A=25\,\mathrm{m^2}$?

Question 2

A contaminant plume travels 50 m through an aquifer with $K=1\times10^{-4}\,\mathrm{m/s}$, hydraulic gradient $i=0.01$, and effective porosity $n_e=0.15$. Using $v=Ki/n_e$, how many days does it take to travel 50 m?

Question 3

Calculate the transmissivity $T$ (in $\mathrm{m^2/s}$) of an aquifer if hydraulic conductivity $K=2\times10^{-4}\,\mathrm{m/s}$ and saturated thickness $b=15\,\mathrm{m}$.

Question 4

On a potentiometric surface map, closely spaced equipotential lines indicate which characteristic of groundwater flow?

Question 5

Which term describes the volume of water released from storage per unit decline in hydraulic head per unit surface area of aquifer?