Question

Rain fall intensities in mm/hr at half an hour interval during a 4-hour storm were : 5, 9, 20, 13, 6, 8, 16 and 3 mm/hr. If the corresponding observed runoff is 27.45 million m³ from a basin having an area of 1830 Km² ? The 𝛟 -index for storm is :

• A. 6.25 mm/hr
• B. 6.7 mm/hr
• C. 7.2 mm/hr
• D. 7 mm/hr

Answer 1

Answer: (C)