engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Environmental Engineering Quality of Water
For a sample of water with the ionic composition shown in the figure below, the carbonate and noncarbonate hardness concentrations (in mg/l as CaCO3), respectively are:
1
200 and 50
2
175 and 75
3
75 and 175
4
50 and 200