turbo83lude
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Need help understanding/solving this problem.
The 1-hr unit hydrograph of excess precipitation is shown in the table below.
Time (hr) 0 1 2 3 4 5
Discharge Q (cfs/in) 0 35 75 105 40 0
A 2-hr storm produces 1.7 in. of runoff during the first hour followed by 0.8 in. of runoff during the second hour. The peak discharge (cfs/sec) due to this storm is most nearly:
A. 210
B. 239
C. 263
D. 287
The answer is B.
Can anyone help??
The 1-hr unit hydrograph of excess precipitation is shown in the table below.
Time (hr) 0 1 2 3 4 5
Discharge Q (cfs/in) 0 35 75 105 40 0
A 2-hr storm produces 1.7 in. of runoff during the first hour followed by 0.8 in. of runoff during the second hour. The peak discharge (cfs/sec) due to this storm is most nearly:
A. 210
B. 239
C. 263
D. 287
The answer is B.
Can anyone help??