Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The minimum width of septic level is 90 cm The depth of tank is kept equal to its width A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The minimum width of septic level is 90 cm The depth of tank is kept equal to its width ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Disposal to sewage in large cities, is done in Oxidation Irrigation Dilution Purification Oxidation Irrigation Dilution Purification ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The standard B.O.D. of water is taken for 3 days 2 days 1 day 5 days 3 days 2 days 1 day 5 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The screens are fixed None of these Parallel to the direction of flow Perpendicular to the direction of flow At an angle 30° to 60° to the direction of flow None of these Parallel to the direction of flow Perpendicular to the direction of flow At an angle 30° to 60° to the direction of flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.5 2.55 2.25 2.65 2.5 2.55 2.25 2.65 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally A source of objectionable odour Alkaline Highly decomposed Acidic A source of objectionable odour Alkaline Highly decomposed Acidic ANSWER DOWNLOAD EXAMIANS APP
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