Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Copper sulphate Sulphuric acid Lime Sodium permanganate Copper sulphate Sulphuric acid Lime Sodium permanganate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Residual chlorine in water is determined by Starch iodide method None of these Orthotolidine method Both (A) and (B) Starch iodide method None of these Orthotolidine method Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At every summit of rising mains At the foot of rising main along the slope to prevent back running of water At every depression and dead ends to drain out the waste water that may collect there At street corners to control the flow of water At every summit of rising mains At the foot of rising main along the slope to prevent back running of water At every depression and dead ends to drain out the waste water that may collect there At street corners to control the flow of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sludge volume index is defined as the ratio of Percentage of sludge by volume to percentage of total solids by weight Percentage of sludge by volume to percentage of suspended solids by weight Percentage of total solids by weight to percentage of sludge by volume Percentage of suspended solids by weight to percentage of sludge by volume Percentage of sludge by volume to percentage of total solids by weight Percentage of sludge by volume to percentage of suspended solids by weight Percentage of total solids by weight to percentage of sludge by volume Percentage of suspended solids by weight to percentage of sludge by volume ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Composting and lagooning are the methods of Sludge digestion Filtration Sludge disposal Sedimentation Sludge digestion Filtration Sludge disposal Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² ANSWER DOWNLOAD EXAMIANS APP
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