Homework 2 Solutions
CE 319F
Prof. Hodges
A. SIMPLE PROBLEMS
A liquid has a specific gravity of 1.07. Answer the following questions about this liquid
using SI units:
1. (4 pts) What is the density?
2
Homework 2 Solutions
CE 319F
Prof. Hodges
42 total homework points
A. SIMPLE PROBLEMS
1. (4 pts) A SCUBA diver is 81 meters below the oceans surface. What is the
absolute pressure exerted on his body?
Homework 7
CE 319F
Prof Hodges
62 total homework points
A. SIMPLE PROBLEMS
1. (4 pts) Consider a rectangular cross-section air duct that enters a room at an
angle as shown below. The average velocity
Homework 3 Solutions
Prof. Hodges
58 total homework points
A. SIMPLE PROBLEMS
1. (4 pts) Imagine a tube with a rectangular cross-section with inside dimensions of
0.45 mm x 1.7 mm. Compute what will h
Homework 3 Solutions
CE 319F
Prof. Hodges
80 total homework points
A. SIMPLE PROBLEMS
A liquid has a specific gravity of 1.07. Answer the following questions about this
liquid using SI units:
1. (4 pt
Homework 6
CE 319F
Prof Hodges
70 points total
A. SIMPLE PROBLEMS
NONE!
B. CHALLENGE PROBLEMS
1. (10 points) A person is floating in a boat with an aluminum anchor. The anchor
has a specific gravity o
Homework 4 Solutions
Prof. Hodges
44 total homework points
A. SIMPLE PROBLEMS
1. (4 pts) Imagine a tube with a rectangular cross-section with inside dimensions of
0.45 mm x 1.7 mm. Compute what will h
Homework 5
CE 319F
Prof Hodges
86 total homework points
A. SIMPLE PROBLEMS
1. Imagine a submerged plate that is 4 x 4 meters square and is submerged such
that the lowest edge is 7 m below the waters s
Homework 5 CE 319F
Prof. Hodges 52 points (grader) + 20 (professor, problem 11)
Simple problems (4 points each)
A liquid has a specific gravity of 1.07. Answer the following questions about this liqui
Homework 3 Solutions
Prof. Hodges
44 total homework points
A. SIMPLE PROBLEMS
1. (4 pts) Imagine a tube with a rectangular cross-section with inside dimensions of
0.45 mm x 1.7 mm. Compute what will h
)f heat 9
1dings. _
inform z
hshaft
essible
l p0WEI V
turbiIle
of [113'
.ad 1055
4
269
where V1 and V2 are the upstream and downstream velocities.
The hydraulic grade line (HGL) is the prole of the pi
.x,
E
126 FLOWING FLUIDS AND PRESSURE VARIATION -.
it w
Problems 4.9 A
at de
4.] In the system in the gure. the valve at C is gradually 4.5 Refer to the ow as indicated by the pathlines in Fig. 4
LE PROBLEMS
171
where the subscripts l and 2 refer to the inlet and outlet of the pipe. If, in addition, the
flow is incompressible,
AlVl : szz
Cavitation occurs when the pressure drops to the local v
FLUID MECHANICS
DENSITY, SPECIFIC VOLUME, SPECIFIC
WEIGHT, AND SPECIFIC GRAVITY
The denitions of density, specic volume, specic weight,
and specic gravity follow:
9 2 limit Am/AV
Al' _ 0
_ ' ' I 7
Y d
UNITS
The FE exam and this handbook use both the metric system of units and the US. Customary System (USCS). In the USCS
System of units, both force and mass are called pounds. Therefore, one must dis
Name
CE W319f Test 1
Throughout the Test.
specific weiht of water at 4 C = 9.810 N/m3
density of water at 4 C = 1000 kglm3
25 Points
1. You are asked to nd the surface tension of ethanol. You are give
Homework 2 Solutions
CE 319F
Prof. Hodges
80 total homework points
A. SIMPLE PROBLEMS
A liquid has a specific gravity of 1.07. Answer the following questions about this
liquid using SI units:
1. (4 pt
Homework hints
3.6
3.7 We did in class but do it again so you know it,
3.27 The circle with the + is a pipe that sticks into / out of the page. Start where you know a pressure
[go to right top, open t
Drag Forces
Chapter 11
CE319F: Elementary Mechanics of Fluids
1
Figure 11.3
Flow past a flat plate.
2
Figure 11.6
Flow pattern around a
cylinder for 103 < Re < 105
Figure 11.7
Flow pattern around a cy