Water Supply Engineering Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be 5 15 10 nil 5 15 10 nil ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering The least thickness of class B cast iron (spun) pipe, is 7.9 mm 7.2 mm 10 mm 8.6 mm 7.9 mm 7.2 mm 10 mm 8.6 mm ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Mathamoglobinemia or blue baby disease is caused due to Chlorides Nitrates Nitrites Sulphides Chlorides Nitrates Nitrites Sulphides ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering In pressure supply mains, water hammer pressure is reduced by providing Air valves None of these Pressure relief valves Sluice valves Air valves None of these Pressure relief valves Sluice valves ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 √Q, the water horse power of the pump is 450 600 500 400 450 600 500 400 ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Acidity in water is caused due to Mineral acids All the above. Free CO₂ Aluminium sulphate Mineral acids All the above. Free CO₂ Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
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