Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Sodium permanganate Copper sulphate Lime Sulphuric acid Sodium permanganate Copper sulphate Lime Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At every depression and dead ends to drain out the waste water that may collect there At every summit of rising mains At the foot of rising main along the slope to prevent back running of water At street corners to control the flow of water At every depression and dead ends to drain out the waste water that may collect there At every summit of rising mains At the foot of rising main along the slope to prevent back running of water At street corners to control the flow of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The per capital consumption of a locality is affected by (i) Climatic conditions (ii) Quality of water (iii) Distribution pressure Both (i) and (ii) Only (i) All (i), (ii) and (iii) Both (i) and (iii) Both (i) and (ii) Only (i) All (i), (ii) and (iii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to geometrical increase method of forecasting population, arithmetical increase method gives Accurate value Lesser value Higher value Same value Accurate value Lesser value Higher value Same value ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product Is cheaper in initial cost than dry conservancy system Creates hygienic problem Requires treatment before disposal All of these Is cheaper in initial cost than dry conservancy system Creates hygienic problem Requires treatment before disposal All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 1000 to 1250 liters/hour/ m² 1500 to 2000 liters/hour/m² 500 to 750 liters/hour/ m² 1250 to 1500 liters/hour/m² 1000 to 1250 liters/hour/ m² 1500 to 2000 liters/hour/m² 500 to 750 liters/hour/ m² 1250 to 1500 liters/hour/m² ANSWER DOWNLOAD EXAMIANS APP
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