The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall – McqOptions

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1.	The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be__________________?
A.	20 3/sec
B.	25 m3/sec
C.	30 m3/sec
D.	35 m3/sec
Answer» C. 30 m3/sec

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