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Material Type: Exam; Professor: Kibbey; Class: Fluid Mechanics; Subject: CIVIL ENGINEERING AND ENVIRONMENTAL SCIENCE; University: University of Oklahoma; Term: Spring 2007;
Typology: Exams
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Note: Please write out the equations you are using to help me give you maximum
partial credit if you make a mistake! (You'll do much better if I can figure out
w h e r e v o u w e n t w r o n g. )
Unless otherwise specified, use the following density values for all problems:
P * n t " r :
1 0 0 0 k g / m 3
P,t,"..,,.)'(Ilg)
: 13550 kgim
A l s o : g : 9. 8 1 m / s 2
Pleasesign the Honor Council integrity pledge:
On m1thonor, I at'firm thot I hot,e neither given nor received inappropriate oid in the
completion o.f' this exercise.
T A B L EC. t A r e a s
A r * a Cr-lrtroirl
Sccond
nt c ittt:tt f
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T r i r r n g l e
C i r " c l *
S r. : mr c r r c l e
f t t i p s *
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F. t u r l
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l l
Sketch
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lslti2 y^ h i 3
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T A B L E C. 2 V o l u f f r e s
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a rea^ Volttnte^ Centroicl
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t
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Quantitative Problems (3 problems; 33
oh each; 99
oh total)
o ) If the pressurein the oil pipe^ (point (^) A) is 75 kPa eaee,cleterminethe pressurein the
waterpipe shownbelow (i.e.,point^ B in the figure). Show all work neededto answerthis
questionand indicateunits for full credit.
oir (s- 0.87) UnknownSolvent(S
-^ 0.65)
Water
Mercury (FIg)
a
6"
I
I
22 crn
l j I ! r , t -'1 l o '
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I I t_/'
t" t , l , I , l-t
shapeof a quarlerellipse. What force, F, is neededto hold the gate^ closed? Show^ all work
neededto answerthis questionand indicateunits fbr full credit.
Gate Shape:
quafterellipse
Water
p: 1000 kg/rn
F
Hinge
%
l { 5 n
17
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oh) The diamond-shapedsolidwoodenobject(.5:0.77) shownbelow floatsin water.
Answer the following questions.Show all work and indicateunits fbr full credit.
A. (6 %) What volumeof water doesthe objectdisplace?
o ) lt the objectfloatsas shown,what is the draft of the object(i.e.,what is r/ in the
figure (^) below (as (^) indicatedon the sideview))?
C. (21 %) Is the (^) objectstableaboutit's longestaxis
below'?
t
v I
zl rn
I
'top
Vielv
y l n
Side
Vielv
(the y axis) when floating as shown
77
7-.,
U
( //-)
? /
. / (
I
I
fl
t t l
t r l
|--
t "'---*l
Front
View
0{h
: ( u p )
I / ' / t_- *z
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tf/ q / ' , /
f tl I /.^ i-r. ,r-rt-{ 3 G K
i' {-r-,' j 0 /l
q '. t 'r I t ,z' / v ) k { : ' / f A 4 / { (^) l - .1, r [ / : ? b - = --'/ t
fr {lhl, \ V J .-f f ^ l
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i , ) r l. ' : ) 1 i, ..1 (^) ,!-
," t y'. ^
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{ ' / J
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1 a A - LI , l ? * r f i od u 'f )L 'I't , u I / / tv ( - (^1) | U ' \
I ' i l i l t - t " t y^
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1 u t l