Water Supply Engineering The yield of a rapid gravity filter as compared to that of slow sand filter, is 10 times 15 times 20 times 30 times 10 times 15 times 20 times 30 times ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering For determining the velocity of flow of underground water, the most commonly used non-empirical formula is Darcy’s formula Lacy’s formula Slichter’s formula Hazen’s formula Darcy’s formula Lacy’s formula Slichter’s formula Hazen’s formula ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering The least thickness of class B cast iron (spun) pipe, is 7.9 mm 10 mm 7.2 mm 8.6 mm 7.9 mm 10 mm 7.2 mm 8.6 mm ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Sunlight impedes growth of algae increases dissolved oxygen content reduces turbidity helps growth of bacterias impedes growth of algae increases dissolved oxygen content reduces turbidity helps growth of bacterias ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Surcharge storage zone of a reservoir, is Above useful storage Below dead storage Between dead storage and useful storage Also known as valley storage Above useful storage Below dead storage Between dead storage and useful storage Also known as valley storage ANSWER DOWNLOAD EXAMIANS APP
Water Supply Engineering Average annual rainfall at any station is the average of annual rainfall over a period of 21 years 35 years 28 years 14 years 21 years 35 years 28 years 14 years ANSWER DOWNLOAD EXAMIANS APP
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