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1. |
Standard USBR stilling basin-II is useful for energy dissipation at the bottom of the overflow structure, if the approaching Froude number is ________________ |
A. | less than 4.5 |
B. | more than 4.5 |
C. | less than 2.5 |
D. | more than 2.5 |
Answer» C. less than 2.5 | |