MCQOPTIONS
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| 1. |
A colony of 50 people is served by a septic tank. The rate of water supply is 90lped in the colony and 40% of it is going to the septic tank. The retention period of the tank is 24 hours. The length of the septic tank is _____ meter (rounded off to two decimal places). Assume, storage capacity/person = 0.085 m3 (year) Space for digestion = 0.0425 m3 /person Depth of tank = 1.4 m ; Length : Width = 2 : 1 |
| A. | 34.2 |
| B. | 3.42 |
| C. | 342 |
| D. | 0.342 |
| Answer» C. 342 | |