GATE2014-1-47

Question

The potable water is prepared from turbid surface water by adopting the following treatment sequence.

• A. Turbid surface water $\rightarrow$ Coagulation $\rightarrow$ Flocculation $\rightarrow$ Sedimentation $\rightarrow$ Filtration $\rightarrow$ Disinfection $\rightarrow$ Storage & Supply
• B. Turbid surface water $\rightarrow$ Disinfection $\rightarrow$ Flocculation $\rightarrow$ Sedimentation $\rightarrow$ Filtration $\rightarrow$ Coagulation $\rightarrow$ Storage & Supply
• C. Turbid surface water $\rightarrow$ Filtration $\rightarrow$ Sedimentation $\rightarrow$ Disinfection $\rightarrow$ Flocculation $\rightarrow$ Coagulation $\rightarrow$ Storage & Supply
• D. Turbid surface water $\rightarrow$ Sedimentation $\rightarrow$ Flocculation $\rightarrow$ Coagulation $\rightarrow$ Disinfection $\rightarrow$  Filtration $\rightarrow$ Storage & Supply