Unformatted text preview: throated flume.
Describe the design and operation of a criticaldepth
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 openchannel 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 uniformflow 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 uniformflow 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
 Sakar
 Fluid Dynamics, Fig, eText Main Menu, subcritical flow

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