Water Supply Engineering By boiling water, hardness can be removed if it is due to calcium bicarbonate calcium nitrate magnesium sulphate calcium sulphate calcium bicarbonate calcium nitrate magnesium sulphate calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Acidity in water is caused due to Free CO₂ Mineral acids Aluminium sulphate All the above. Free CO₂ Mineral acids Aluminium sulphate All the above. ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering The specific retention is least in case of Clay Sand Coarse gravel. Silt Clay Sand Coarse gravel. Silt ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering As per IS : 1172-1963, water required per head per day for average domestic purposes, is 85 litres 105 litres 135 litres 65 litres 85 litres 105 litres 135 litres 65 litres ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Sunlight helps growth of bacterias increases dissolved oxygen content reduces turbidity impedes growth of algae helps growth of bacterias increases dissolved oxygen content reduces turbidity impedes growth of algae ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be 15 10 5 nil 15 10 5 nil ANSWER DOWNLOAD EXAMIANS APP
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