Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 6 (Q.No. 31)
31.
The maximum permissible colour for domestic supplies based on cobalt scale, is
5 ppm
10 ppm
15 ppm
20 ppm
25 ppm.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
27 comments Page 2 of 3.

Sankarshan said:   5 years ago
Cobalt scale should not exceed 20, preferably less than 10.

Mohammad Asim said:   7 years ago
The range for color for domestic water is 10-20 ppm.

Chaitanya nagare said:   4 years ago
As per is 10500-2012.

Colour 5 to 15 ppm.
(2)

Vasanth said:   6 years ago
The range b/w 10 to 20 ppm. So max 20ppm.

Abhilash said:   10 years ago
Answer should be E the limit is 5 to 25.

Subhasish goswami said:   8 years ago
Desirable -5ppm.
Permissible- 25ppm.

Mandeep gupta said:   6 years ago
For domestic purpose 5 to 20 ppm.

Anirban Roy said:   5 years ago
It should be 15 as per IS code.

AmbikaReang said:   4 years ago
20 parts per million.

Prashant said:   7 years ago
5 to 15 is correct.


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