Unformatted text preview: throated flume.
Describe the design and operation of a critical-depth
flume. What are its advantages compared to the venturi
flume of Prob. 10.113? Textbook Table of Contents | Study Guide Design Projects 707 Fundamentals of Engineering Exam Problems
The FE Exam is fairly light on open-channel problems in the general (morning) session, but it plays a big part in the specialized
civil engineering (afternoon) exam.
FE10.1 Consider a rectangular channel 3 m wide laid on a 1°
slope. If the water depth is 2 m, the hydraulic radius is
(a) 0.43 m, (b) 0.6 m, (c) 0.86 m, (d ) 1.0 m, (e) 1.2 m
FE10.2 For the channel of Prob. FE10.1, the most efficient water depth (best flow for a given slope and resistance) is
(a) 1 m, (b) 1.5 m, (c) 2 m, (d ) 2.5 m, (e) 3 m
FE10.3 If the channel of Prob. FE10.1 is built of rubble cement
(Manning’s n 0.020), what is the uniform-flow rate
when the water depth is 2 m?
(a) 6 m3/s, (b) 18 m3/s, (c) 36 m3/s, (d ) 40 m3/s,
(e) 53 m3/s FE10.4 For the channel of Prob. FE10.1, if the water depth is
2 m and the uniform-flow rate is 24 m3/s, what is the approximate value of Manning’s roughness factor n?
(a) 0.015, (b) 0.020, (c) 0.025,...
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- Spring '08
- Fluid Dynamics, Fig, e-Text Main Menu, subcritical flow