Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 5 (Q.No. 2)
2.
Which one of the following related to domestic potable water quality is correct?
Turbidity (on Silica scale) is 15-20 ppm or mg/lit.
Colour (on Cobalt scale) is 15-25 ppm or mg/lit.
Hardness (expressed as Ca CO3 equivalent) is 75-115 ppm or mg/lit
BOD is 20 ppm or mg/lit
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Pratik said:   6 years ago
Total hardness - 75-115mg/l.
Chloride - 250mg/l.
Fluorides - 0.5mg/l.
Nitrates - 45-100mg/l.
Magnesium - 30mg/l.
Iron - 0.3 mg/l.
Total diaolved solid - 450mg/l.
Turbidity - 5-10mg/l.
And pH -> 6.5-8.5.
(1)

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