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				| 1. | Calculate the area of the activated carbon filter for the following details.Flow: 2000 m3/h.Rise Velocity: 15m/h | 
| A. | 118 m2 | 
| B. | 135 m2 | 
| C. | 122 m2 | 
| D. | 136 m2 | 
| Answer» C. 122 m2 | |