A unit hydrograph represents a hydrograph of direct runoff observed at the downs

Question

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) 1. a. 1 inch b. 1cm c. 1 meter e. 1 foot 2. Select all the facts about NRCS TR-55Method (circle the correct ones) a. TR-55 is for urban watershed hydrology method b. TR-55 requires the parameter curve number c. TR-55 includes the infiltration loss d. TR-55 requires the parameter time of concentration e. TR-55 considers the evaporation rate 3. True or false for each statement (Circle one in each): a. A critical flow can never occur in the horozontal channel slope. (True or False b. A supercritical flow is slower than the subcritical flow in a channel. (True or False) c. A supercritical flow is deeper than the critical flow in the same channel. (True or False) d. A supercritical flow can only be controlled from downstream. (True or False) e. A supercritical flow can have a hydraulic jump at downstream. (True or False)

Explanation / Answer

1) a, b, c, d, e

All options are correct. Whatever the units, the runoff depth must be 1. Wheter the units are mm, inch or anything, it must be 1. Then it is called unit hydrograph.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.