Water Supply Engineering Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be 5 15 nil 10 5 15 nil 10 ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Surge tanks are used as overflow valves for storage water to guard against water hammer to increase the velocity in a pipeline as overflow valves for storage water to guard against water hammer to increase the velocity in a pipeline ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering While determining the yield of open wells by the pumping test Velocity of recharging water, increases with depression head Maximum safe yield of an open well, is expected at critical depression head Depression head resulting at critical velocity, is called critical depression head Working head is generally limited to ?rd of the critical depression head Velocity of recharging water, increases with depression head Maximum safe yield of an open well, is expected at critical depression head Depression head resulting at critical velocity, is called critical depression head Working head is generally limited to ?rd of the critical depression head ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering For determining the velocity of flow of underground water, the most commonly used non-empirical formula is Hazen’s formula Darcy’s formula Slichter’s formula Lacy’s formula Hazen’s formula Darcy’s formula Slichter’s formula Lacy’s formula ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering The yield of a rapid gravity filter as compared to that of slow sand filter, is 15 times 10 times 30 times 20 times 15 times 10 times 30 times 20 times 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 500 400 450 600 500 400 450 600 ANSWER DOWNLOAD EXAMIANS APP
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