Multiple Choice Identify the choice that best completes the
statement or answers the question.


1.

Use Theis Method to solve the following: A
confined aquifer has a thickness of 51.0 ft. A fully penetrating well is pumped at 575 gallons/minute
and the following data is collected from an observation well 60 feet away from the pumping well (s =
)h): s=1.7ft @ t=2min s=1.9ft @ t=3min s=2.0ft @
t=4min s=2.4ft @ t=7min s=2.6ft @ t=10min s=3.0ft @ t=20min s=3.3ft @ t=60min s=3.5ft
@ t=90min s=3.6ft @ t=700min What is the Storativity of the pumped aquifer? Hint: Watch
your units! Remember, Storativity is unitless. You must convert your units. Remember, units must
cancel each other out to get a unitless answer.
a.  < 0.000005  b.  between 0.00001 and 0.000005  c.  between 0.00005 and 0.00001  d.  between 0.0001 and 0.00005  e.  between 0.0005 and 0.0001  f.  between 0.001 and 0.0005  g.  between 0.005 and
0.001  h.  > 0.005 


2.

A well is pumped at a rate of 600 gal/min and the
following data is measured after 48 hours at three observation wells: r,
ft Drawdown,
ft 40.1
3.15 95.1
2.24 144.7 1.71 What is the
Transmissivity of the Aquifer in m^{2}/min?
a.  < 0.09
m^{2}/min  b.  between 0.09
m^{2}/min and 0.14 m^{2}/min  c.  between 0.14
m^{2}/min and 0.19 m^{2}/min  d.  between 0.19
m^{2}/min and 0.24 m^{2}/min  e.  between 0.24
m^{2}/min and 0.29 m^{2}/min  f.  between 0.29
m^{2}/min and 0.34 m^{2}/min  g.  between 0.34
m^{2}/min and 0.39 m^{2}/min  h.  > 0.39
m^{2}/min 


3.

Which of the following statements
would best describe h_{0} in the pictured graphic?
a.  Water level during pumping.  b.  Saturated aquifer thickness.  c.  Well yield.  d.  Equilibrium water
level before pumping commences  e.  Drawdown.  f.  Specific
capacity.  g.  Radius of
influence. 


4.

The Theis function (u) is equivalent to which
function in an aquifer test?
a.  1/t  b.  )h  c.  t  d.  r  e.  W(u)  f.  b  g.  h/l  h.  1/)h 


5.

Which modeling condition has to
exist at point 3 in the graphic for the Theis Curve approach to be valid?


6.

Which of the following methods could you use to
figure Transmissivity and Storativity of an unconfined aquifer?
a.  JacobsThiem Method  b.  Thiem Method  c.  Neuman
Method  d.  A & B if the unconfined aquifer is steady state and
I use a correction factor, as well as C  e.  A, B, and C
regardless, as long as I use the correction factor. 


7.

The hydraulic head on the left
constant head boundary is 1443.0m. The hydraulic head on the right constant head boundary is 1440.0m.
Assume equal increment drops across the shown equipotential lines. If the hydraulic conductivity is
5.00×10^{5} m/s, what is the flow (Q) in segment B, assuming an aquifer unit depth of
1.0 meters?
a.  < 5.0×10^{6}
m^{3}/s  b.  between
5.0×10^{6} m^{3}/s and 1.0×10^{5}
m^{3}/s  c.  between
1.0×10^{5} m^{3}/s and 5.0×10^{5}
m^{3}/s  d.  between
5.0×10^{5} m^{3}/s and 1.0×10^{4}
m^{3}/s  e.  between
1.0×10^{4} m^{3}/s and 5.0×10^{4}
m^{3}/s  f.  between
5.0×10^{4} m^{3}/s and 1.0×10^{3}
m^{3}/s  g.  between
1.0×10^{3} m^{3}/s and 5.0×10^{3}
m^{3}/s  h.  >
5.0×10^{3} m^{3}/s 


8.

A pumping test was performed and the
pictured graph was obtained after plotting the results from 4 observation wells (red +). Which of the
following methods is best suited to solve for T and S in conjunction with this
graph?
a.  Neuman Method  b.  Theis Method  c.  CooperJacobs
Drawdown vs Time Method  d.  JacobsThiem
Method  e.  Thiem Method 


9.

If you drilled a well into an aquifer of infinite
extent with an isotropic horizontal hydraulic conductivity and pumped the well, the flow of water to
the well would be ....?
a.  Always radial  b.  Always 1/u  c.  Always
elliptic  d.  Always vertical  e.  Always oblique  f.  Always
$  g.  Always r  h.  Always W(u) 


10.

You have a single fully penetrating pumping well in
an unconfined aquifer with no observation wells present. The bottom of the aquifer sits 8.3 meters
below the well head and your initial water level sits 185cm below the well head. You pump your well
at a steady rate of 100 liters/minute for about an hour and now the water level measures 283cm below
well head. What is the Transmissivity of the Aquifer?
a.  < 0.01
m^{2}/s  b.  between 0.01
m^{2}/s and 0.05 m^{2}/s  c.  between 0.05
m^{2}/s and 0.1 m^{2}/s  d.  between 0.1
m^{2}/s and 0.5 m^{2}/s  e.  between 0.5
m^{2}/s and 1.0 m^{2}/s  f.  between 1.0
m^{2}/s and 1.5 m^{2}/s  g.  between 1.5
m^{2}/s and 2.0 m^{2}/s  h.  > 2.0
m^{2}/s 


11.

A well is pumped at a rate of 600 gal/min and the
following data is measured after 48 hours at three observation wells: r,
ft Drawdown,
ft 40.1
3.15 95.1
2.24 144.7 1.71 What is the
diameter of the drawdown funnel in meters?
a.  < 150m  b.  between 150 m and 300 m  c.  between 300 m and
450 m  d.  between 450 m and 600 m  e.  between 600 m and 750 m  f.  between 750 m and
900 m  g.  between 900 m and 1050 m  h.  > 1050 m 

Multiple Response Identify one or more choices that best complete
the statement or answer the question.


12.

Which part of the Neuman curve can be used to
estimate actual Storativity during a pumping test of an unconfined aquifer? (check all that
apply)


13.

A pumping test was performed and the
pictured graph was obtained after plotting drawdown vs distance from several observation wells (red
+). The best fit straight line (blue) was plotted as well. What does this graph reveal?
(check all that apply)
