University of Maryland 'l
Department of Civil and Environmental Engineering:
5
5
Exam No. 1, October 13, 2011
Closed Book
ENCE441 WWM
Foundation Design
1. (25%) Determine the active lateral pressure distribution and plot the distribution and
calculate t
I 32 I
University of Maryland
Department of Civil and Environmental Engineering -
Exam No. 1, October 14, 2008
Closed Book
ENCE 441 Age Name:
Foundation Design B I :
1. (20%) Determine the assive lateral pressure distribution and glot the distribu
UNIVERSITY OF MARYLAND
Department of Civil and Environmental Engineering
ENCE 441 Homework Assignment
Foundation Design No.1
Date Assigned: Thursday, September 15, 2016
Date Due: Thursday, September 22, 2016
1)
2)
3)
4)
A vertical retaining wall with a h
UNIVERSITY OF MARYLAND
Department of Civil and Environmental Engineering
ENCE 441 Homework Assignment
Foundation Design No. 2
Date Assigned: Tuesday, September 20, 2016
Date Due: Tuesday, September 27, 2016
1) Compute the passive lateral pressure and forc
UNIVERSITY OF MARYLAND
Department of Civil and Environmental Engineering
ENCE 441 Homework Assignment
Foundation Design No. 3
Date Assigned: Thursday, September 22, 2016
Date Due: Thursday, September 29, 2016
1. Find the active lateral earth pressure and
Homework #4
5-96
The solar collector field is the most cost economical of the three designs and offers
the most power of the three as well.
6-6
The 1.5% interest table does not contain n = 516. The problem must be segmented to
use the 1.5% table.
Compute
ENCE 305 Fundamentals of Engineering Fluids
PS #30 Solutions
1. Frictional Flow Between Tanks (4 points)
Let us first assume that flow moves from tanks A and B into tank C. That is, we will
say:
QC QA ` QB
(1)
Hence, we can say:
2
2
D3 v3
D1 v1 ` D22 v
ENCE 305 Fundamentals of Engineering Fluids
PS #34 Solutions
1. Waves in a Tank (4 points)
?
For starters we know that c g y. Hence, it follows that the depth of the tank can
be written as:
c2
g
p2 m s1 q2
9.81 m s2
y
0.408 m +1
(1)
(2)
(3)
(a) If the t
ENCE 305 Fundamentals of Engineering Fluids
PS #33 Solutions
1. Fish Ladder (3 points)
First, let us adopt the convention where pqn and pqf represent normal and flood
conditions, respectively. Hence, we can say:
vn
K
pRh,n q2cfw_3 pSo,n q1cfw_2
nn
(1)
vf
ENCE 305 Fundamentals of Engineering Fluids
PS #23 Solutions
1. Curtain of Air (3 points)
Starting with the energy equation, we have:
p1
`
v 21
p2 v 22
` z1 ` hf an
`
` z 2 ` ht ` h`
2g
2g
(1)
v2
where p1 p2 v1 ht 0, z1 u z2 , h` head loss 5 2g2 , and th
ENCE 305 Fundamentals of Engineering Fluids
PS #27
Due: Wednesday, April 20th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a
ENCE 305 Fundamentals of Engineering Fluids
PS #28
Due: Friday, April 22nd
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse
ENCE 305 Fundamentals of Engineering Fluids
PS #32 Solutions
1. Flow in a Rectangular Channel (3 points)
Starting with Mannings Equation, we have:
v
where So
1 m
1000 m
K 2cfw_3 1cfw_2
R S
+1
n h o
(1)
0.001 and K 1. In addition, we can say:
Rh
A
P
(2
ENCE 305 Fundamentals of Engineering Fluids
PS #29 Solutions
1. Flow in an Iron Pipe System (4 points)
Starting with the major loss in the straight run of pipe, we have:
major loss f
L v2
D 2g
(1)
where L p6 ` 6 ` 4 ` 1q in = 17 in and D 0.75 in. Next, we
ENCE 305 Fundamentals of Engineering Fluids
PS #33
Due: Wednesday, May 4th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse
ENCE 305 Fundamentals of Engineering Fluids
PS #31
Due: Friday, April 29th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse
ENCE 305 Fundamentals of Engineering Fluids
PS #24 Solutions
1. Grade Lines in a Horizontal Constriction (4 points)
For inviscid flow with no pumps or turbines, the energy line is horizontal at a distance
h 1.8 ft above the outlet. as illustrated in Figur
ENCE 305 Fundamentals of Engineering Fluids
PS #28 Solutions
1. Flow Through a Horizontal Tube (3 points)
(a) Assuming laminar, uniform flow, the maximum p corresponds to the maximum
v. That is,
vD
Re
2000
(1)
2000p106 m2 s1 q
(2)
v
103 m
2.0 m s1 +1
ENCE 305 Fundamentals of Engineering Fluids
PS #26 Solutions
1. Dimensional Analysis on a Pump (4 points)
Given that
p f pD, , !, Qq, we can
.
p
.
D
.
.
!
.
Q
say in [FLT] that:
[F L2 ]
[L]
[F T2 L4 ]
[T1 ]
(1)
(2)
(3)
(4)
[L3 T1 ] +1
(5)
Hence, we
ENCE 305 Fundamentals of Engineering Fluids
PS #34
Due: Friday, May 6th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly assembl
ENCE 305 Fundamentals of Engineering Fluids
PS #27 Solutions
1. Fluid Flow through a Horizontal Pipe (3 points)
The head loss over the length of the pipe can be computed as:
` v2
h` f
D 2g
(3)
Since we know the flow is laminar +1 (Re 1500 2000), we can co
ENCE 305 Fundamentals of Engineering Fluids
PS #26
Due: Monday, April 18th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse
ENCE 305 Fundamentals of Engineering Fluids
PS #29
Due: Monday, April 25th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse
ENCE 305 Fundamentals of Engineering Fluids
PS #30
Due: Wednesday, April 27th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a
ENCE 305 Fundamentals of Engineering Fluids
PS #32
Due: Monday, May 2nd
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly assembl