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Unformatted text preview: (d ) 0.030, (e) 0.035
FE10.5 For the channel of Prob. FE10.1, if Mannings roughness
factor n 0.020 and Q 29 m3/s, what is the normal
depth yn?
(a) 1 m, (b) 1.5 m, (c) 2 m, (d ) 2.5 m, (e) 3 m
FE10.6 For the channel of Prob. FE10.1, if Q 24 m3/s, what is
the critical depth yc?
(a) 1.0 m, (b) 1.26 m, (c) 1.5 m, (d ) 1.87 m, (e) 2.0 m
FE10.7 For the channel of Prob. FE10.1, if Q 24 m3/s and the
depth is 2 m, what is the Froude number of the flow?
(a) 0.50, (b) 0.77, (c) 0.90, (d ) 1.00, (e) 1.11 Comprehensive Problems
C10.1 February 1998 saw the failure of the earthen dam impounding California Jim’s Pond in southern Rhode Island.
The resulting flood raised temporary havoc in the nearby
village of Peace Dale. The pond is 17 acres in area and 15
ft deep and was full from heavy rains. The breach in the
dam was 22 ft wide and 15 ft deep. Estimate the time required for the pond to drain to a depth of 2 ft.
C10.2 A circular, unfinished concrete drainpipe is laid on a slope
of 0.0025 and is planned to carry from...
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 Spring '08
 Sakar

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