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 Maximum safe yield of an open well, is expected at critical depression head Velocity of recharging water, increases with 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 Maximum safe yield of an open well, is expected at critical depression head Velocity of recharging water, increases with depression head ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Corrosion of well pipes may not be reduced by using screens having larger area of openings reducing the flow velocity reducing the draw down and the pumping rate using thicker pipes using screens having larger area of openings reducing the flow velocity reducing the draw down and the pumping rate using thicker pipes ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied By gravitational system Both (A) and (B) By pumping system All listed here By gravitational system Both (A) and (B) By pumping system All listed here ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering As per IS : 1172-1963, water required per head per day for average domestic purposes, is 105 litres 65 litres 85 litres 135 litres 105 litres 65 litres 85 litres 135 litres ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Acidity in water is caused due to Mineral acids Aluminium sulphate All the above. Free CO₂ Mineral acids Aluminium sulphate All the above. Free CO₂ ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is 1880 kilo litres 2880 kilo litres 4880 kilo litres 3880 kilo litres 1880 kilo litres 2880 kilo litres 4880 kilo litres 3880 kilo litres ANSWER DOWNLOAD EXAMIANS APP
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