A. helps growth of bacterias
B. impedes growth of algae
C. increases dissolved oxygen content
D. reduces turbidity
A. reducing the draw down and the pumg rate
B. reducing the flow velocity
C. using thicker pipes
D. using screens having larger area of openings
E. none of these
A. 50 litres
B. 65 litres
C. 85 litres
D. 105 litres
E. 135 litres
A. Darcy’s formula
B. Slichter’s formula
C. Hazen’s formula
D. Lacy’s formula
A. Kuichling’s formula
B. Freeman formula
C. Under Writers formula
D. Bustan’s formula
E. All the above.
A. Boarding schools
B. Nurses home and medical quarters
C. hostels
D. all the above
A. 2 m
B. 2.25 m
C. 2.50 m
D. 2.75 m
E. 3.00 m