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1. |
If the velocities of flow of a stream of 10 m depth recorded by a current meter at depths of 2 m and 8 m are 0.7 m and 0.3 m respectively, the discharge per unit width of the stream in cubic metres, is |
A. | 2 |
B. | 3 |
C. | 4 |
D. | 5 |
Answer» E. | |