NAME V €'l
GW Engineering EXAM I FALL 2010
PROBLEM #2
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25 points USE UNITS of CENTIMETERS SECONDS and GRAMS
Two identical clean glass beakers hold the same volume of fluid.
One contains distilled water and the other mercury.
A 0.1cm diameter glass tube is placed vertically in each beaker with the bottom of the tube
suspended 1Ocm above the bottom ofthe beaker.
The properties of the fluids are indicated in the illustration below
ANSWER THE QUESTIONS ON THE FOLLOWING PAGE, SHOW YOUR WORK
NOT BRAITTN TO SCALE
Clean ghsstuhes
0"1 cm diamehr
Fluld level
ln tubes?
tt
Fluld bvel ln
PI$TILLEB llllATER
'{lmh air & cFan glass
Surfaceiension = 72.8 gfsE#
Contact angne = (ts
Densi$ = t glcmr
Viscosity = 0.01 gf{cm-sec}
tt
t
l-arge ctsan glass beakens
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VtY
NAME
GW Engineering EXAM I FALL 2010
PROVIDE CALC
USE UNITS of CENTIMETERS SECONDS and GRAMS
2a) On the diagrams of the precious page, draw a schematic of the fluid within each tube.
See* pre"iorr-s P*3-cZUi
Wtt"t is the capillary rise of each fluid in'the 0.1 cm diameter tubes?
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conductivity for water in a porous medium is 3x10-2 cm/sec. What would
2c) tf the hydraulic cond
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the fluid conductivitY
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