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A refuse collection system consisting of two chutes is to be provided in a 20 storied residential building with 2 flats/floor (average family size = 5) and with each chute serving one flat on each floor. Average quantity of refuse and its density are 880 g/person/ day and 240 kg/m3 respectively. If the cleaning interval is two days, then the minimum size of the refuse container (litre) at the bottom of each chute is _______________
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- 730 to 740
- 630 to 640
- 530 to 540
- 430 to 440
Correct Option: A
730 to 740
Total no. of person in the building = 2 × 5 × 20 = 200
No. person serving person chute 200/2 = 100
Average quantity of refuse collected in 2 days in one chute = 2088 kg × 100 = 176 kg So,
| So volume of the chute = | = | = 0.733m³ = 733 litres | ||
| density | 240 |
