A. nil
B. 5
C. 10
D. 15
E. 20
Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be________________? Read More »
Water Supply Engineering A. for storage water
B. to increase the velocity in a pipeline
C. as overflow valves
D. to guard against water hammer
Surge tanks are used_______________? Read More »
Water Supply Engineering A. 7 years
B. 14 years
C. 21 years
D. 28 years
E. 35 years
A. helps growth of bacterias
B. impedes growth of algae
C. increases dissolved oxygen content
D. reduces turbidity
Sunlight_________________ ? Read More »
Water Supply Engineering A. 10 times
B. 15 times
C. 20 times
D. 30 times
E. 35 times
A. Kuichling’s formula
B. Freeman formula
C. Under Writers formula
D. Bustan’s formula
E. All the above.
The fire demand of a city may be worked out by _________________? Read More »
Water Supply Engineering