CVEN325 A- Final Exam 2017 Fall 1. True or false for each statement (Circle one

Question

CVEN325 A- Final Exam 2017 Fall 1. True or false for each statement (Circle one in each): a. A critical flow can only occur in the critical channel slope. (True or False) b. A supercritical flow is faster than the subcritical flow in a channel. (True or False) c. A supercritical flow is deeper than the subcritical flow in the same channel. (True or False) d. A subcritical flow can only be controlled from upstream. (True or False) e. A subcritical flow can have a hydraulic jump at downstream. (True or False) 2. A unit hydrograph represents a hydrograph of direct runoff observed at the downstream of a basin due to what runoff depth? (select all the possible answers) a. 1 meter b. 1mm c 1 cm d. 1 inch e. 1 foot 3. Select all the facts about NRCS TR-55Method (circle the correct ones) a. TR-55 is a urban hydrology method b. TR-55 requires the parameter curve number C. TR-55 requires the parameter time of concentration d. TR-55 considers the evaporation rate e. TR-55 includes the infiltration loss

Explanation / Answer

1) Option a,b and e are true. Critical flow will ocuur in critical channel slope with critical deppth.

Super critical flow is faster than sub critical flow and depth is less.

for subcritical flow hydraulic jup occus at downstream with some energy loss.

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