Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 120 1 in 100 1 in 60 None of these 1 in 120 1 in 100 1 in 60 None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Recovery Active decomposition Cleaner water Degradation Recovery Active decomposition Cleaner water Degradation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 216 cu.m 208 cu.m 204 cu.m 212 cu.m 216 cu.m 208 cu.m 204 cu.m 212 cu.m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Four times the average demand Twice the average demand Thrice the average demand Average demand Four times the average demand Twice the average demand Thrice the average demand Average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually More than 7 Equal to 7 Equal to zero Less than 7 More than 7 Equal to 7 Equal to zero Less than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must be of adequate size to avoid over flow Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements All listed here Must be of adequate size to avoid over flow Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements All listed here ANSWER DOWNLOAD EXAMIANS APP
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