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| Q. |
What is the tank volume of aeration for water flow of 50m3/h? |
| A. | 40 m3 |
| B. | 50 m3 |
| C. | 80 m3 |
| D. | 100 m3 |
| Answer» B. 50 m3 | |
| Explanation: the water is aerated for a period of no less than 60 minutes. the tank volume of aeration for water flow of 50m3/h is 50 m3. | |
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