Environmental Engineering The effective size of sand particles used in slow sand filters is 0.60 to 1.00 mm 0.35 to 0.60 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.35 to 0.60 mm 0.25 to 0.35 mm 1.00 to 1.80 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering When there is no recirculation of sewage, then recirculation factor is 1 Infinity None of these 1 Infinity None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Settling velocity increases with Temperature of liquid Size of particles Specific gravity of solid particles Depth of tank Temperature of liquid Size of particles Specific gravity of solid particles Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Oxidation pond Aerated lagoons Trickling filters Oxidation ditch Oxidation pond Aerated lagoons Trickling filters Oxidation ditch ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Composting and lagooning are the methods of Filtration Sludge digestion Sedimentation Sludge disposal Filtration Sludge digestion Sedimentation Sludge disposal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Residual chlorine in water is determined by Orthotolidine method None of these Both (A) and (B) Starch iodide method Orthotolidine method None of these Both (A) and (B) Starch iodide method ANSWER DOWNLOAD EXAMIANS APP
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