Civil Engineering - Waste Water Engineering - Discussion
Discussion Forum : Waste Water Engineering - Section 2 (Q.No. 15)
15.
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is
Discussion:
16 comments Page 2 of 2.
Sajid said:
7 years ago
Ans is 5.
Q= Qd+ Qs = 21 Qs (wet weather) and Q =0 +Qs in dry weather. So discharge in dry weather is (1/21) * 100 = approx 5%
Q= Qd+ Qs = 21 Qs (wet weather) and Q =0 +Qs in dry weather. So discharge in dry weather is (1/21) * 100 = approx 5%
Anomies said:
7 years ago
How come 21 here?
Keerthana said:
7 years ago
Please explain the correct answer.
Biswajit sardar said:
6 years ago
Qd/Qs=20.
So, Qd=20xQs.
Q= Qd+Qs.
Q= 20Qs+Qs. = 21Qs.
So, Qd=20xQs.
Q= Qd+Qs.
Q= 20Qs+Qs. = 21Qs.
(3)
Evasu said:
5 years ago
21 = 100%.
1 = 100/21.
4.76 = 100 * 4.76/21 = 22 = 20.
1 = 100/21.
4.76 = 100 * 4.76/21 = 22 = 20.
Pavan ingaleshwar said:
4 years ago
It's correct during non-monsoon periods only 1/20th to 1/30th of design discharge will be passing through the sewers if the combined system is adopted.
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