engineering recuitment OSSC Combined Technical Services (ଓଡିଶା) Mock Test 2023-24 Environmental Engineering Quality of Water
Total hardness of a water sample is 250 mg/Las CaCO3. The total alkalinity of the same sample is 300 mg/L. The non – carbonate hardness of the given sample will be
1
0 mg/L
2
25 mg/L
3
50 mg/L
4
250 mg/L