Activated carbon is used for
A. Disinfection
B. Removing hardness
C. Removing odours
D. Removing corrosiveness
Answer: Option C
A. Disinfection
B. Removing hardness
C. Removing odours
D. Removing corrosiveness
Answer: Option C
The distribution mains are designed for
A. Maximum daily demand
B. Maximum hourly demand
C. Average daily demand
D. Maximum hourly demand on maximum day
Sewage treatment units are designed for
A. Maximum flow only
B. Minimum flow only
C. Average flow only
D. Maximum and minimum flow
A. 4.5 to 6.0
B. 6.5 to 8.0
C. 8.5 to 10.0
D. 10.5 to 12.0
O.