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1. |
A retaining wall 10 m high with a vertical back retains moist sand with a horizontal surface. If unit weight of sand is 15 KN/cum and the angle of internal friction is 30 degree, the total active pressure (in KN) experienced by the wall per m run is |
A. | 25 |
B. | 2250 |
C. | 250 |
D. | 23 |
E. | 83.33 |
Answer» D. 23 | |