Water Supply Engineering While determining the yield of open wells by the pumping test 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 Velocity of recharging water, increases with depression head Maximum safe yield of an open well, is expected at critical depression head ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering The specific retention is least in case of Coarse gravel. Sand Clay Silt Coarse gravel. Sand Clay Silt ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Average annual rainfall at any station is the average of annual rainfall over a period of 28 years 21 years 35 years 14 years 28 years 21 years 35 years 14 years ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Turbidity of raw water is a measure of Suspended solids O.D Acidity of water None of these Suspended solids O.D Acidity of water None of these ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Aeration of water is done to remove bacterias odour hardness colour bacterias odour hardness colour 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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