MCQOPTIONS
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MCQOPTIONS
| 1. |
If γw is the unit weight of water, r the hydraulic mean depth of the sewer and S the bed slope of the sewer, then the tractive force exerted by flowing water, is |
| A. | γw . r . S |
| B. | γw r1/2 . S |
| C. | γw r S |
| D. | γw r2/3 S |
| Answer» B. Œ≥w r1/2 . S | |