The yield of a rapid gravity filter as compared to that of slow sand filter, is
A. 10 times
B. 15 times
C. 20 times
D. 30 times
Answer: Option D
Related Questions on Water Supply Engineering
The fire demand of a city may be worked out by
A. Kuichling’s formula
B. Freeman formula
C. Bustan’s formula
D. All the above
Mathamoglobinemia or blue baby disease is caused due to
A. Chlorides
B. Nitrites
C. Nitrates
D. Sulphides
Acidity in water is caused due to
A. Mineral acids
B. Free CO2
C. Aluminium sulphate
D. All the above
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