Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 5 to 8 mm 3 to 5 mm 2 to 3 mm 8 to 10 mm 5 to 8 mm 3 to 5 mm 2 to 3 mm 8 to 10 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known None of these Bio-Chemical Oxygen Demand (B.O.D.) Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) None of these Bio-Chemical Oxygen Demand (B.O.D.) Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering At the junction of sewers Top of larger sewer is kept lower None of these Top of smaller sewer is kept lower Tops of both the sewers are at the same level Top of larger sewer is kept lower None of these Top of smaller sewer is kept lower Tops of both the sewers are at the same level ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is Less than 6 Less than 7 More than 7 More than 6 Less than 6 Less than 7 More than 7 More than 6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is 6.5 m 5 m 7 m 5.5 m 6.5 m 5 m 7 m 5.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is Cement concrete sewers Stone ware sewers Glazed bricks sewers Cast iron sewers Cement concrete sewers Stone ware sewers Glazed bricks sewers Cast iron sewers ANSWER DOWNLOAD EXAMIANS APP
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