5.
The ditch below is-
A.
Symmetrical trapezoidal
B.
Segmental.
C.
Nonsymmetrical triangular.
D.
Nonsymmetrical trapezoidal.
6.
You are designing a ditch in SMd soil. Use table 4-1 on page 4-4 to find the maximum velocity.
A.
3
B.
4
C.
5
D.
6
7.
You have determined that the above ditch has a Q of 10 cfs. It will be constructed in Gc soil and has a
slope of 0.005 ft/ft. Use table 4-1 to determine the velocity and figure 4-5, page 4-17 to determine the hydraulic
radius.
A.
V = 6.0 R = 1.7
B.
V = 3.0 R = 2.5
C.
V = 2.0 R = .25
D.
V = 4.0 R = 1.1
EN5465
4-24
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