Waste Water Engineering Aerobic bacterias Consume organic matter as their food Oxidise organic matter in sewage All of these Flourish in the presence of free oxygen Consume organic matter as their food Oxidise organic matter in sewage All of these Flourish in the presence of free oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 100 60 40 20 100 60 40 20 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 8 to 10 mm 2 to 3 mm 5 to 8 mm 3 to 5 mm 8 to 10 mm 2 to 3 mm 5 to 8 mm 3 to 5 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the grit in grit chambers is 4.5 million litres per day, its cleaning is done Electrically Manually Mechanically Hydraulically Electrically Manually Mechanically Hydraulically ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, Is doubled Is only provided Is trebled Is not enough Is doubled Is only provided Is trebled Is not enough ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is 1 in 120 None of these 1 in 100 1 in 60 1 in 120 None of these 1 in 100 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
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