MCQOPTIONS
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				| 1. | Calculate the backwash water volume for the activated carbon filter for the following details.Net Flow: 3000 m3/h.Rise Velocity: 15m/h | 
| A. | 580 m3 | 
| B. | 800 m3 | 
| C. | 680 m3 | 
| D. | 900 m3 | 
| Answer» C. 680 m3 | |