Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 6 (Q.No. 32)
32.
The dilution ratio at which the odour is hardly detectable is generally called threshold odour number and for public supplies it should not exceed
3
5
7
9
10
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Tui laga said:   2 years ago
Threshold Odour number rangers from 1 - 3.
(1)

Abhishek said:   3 years ago
10 is the answer.

According to R.agor.

Maya said:   3 years ago
According to R.S Khurmi, its range is 0 to 5ppm.

Anyone, please explain.

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