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1. |
A triangular direct runoff hydrograph due to a storm has a time base of 90 hours. The peak flow of 60 m3/s occurs at 20 hours from the start of the storm, the area of catchment is 300 km2. The rainfall excess of the storm (in cm), is |
A. | 2 |
B. | 3.24 |
C. | 5.4 |
D. | 6.48 |
Answer» C. 5.4 | |