Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 5 to 7 0.2 to 0.4 0.4 to 1.0 2 to 4 5 to 7 0.2 to 0.4 0.4 to 1.0 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) 2B 8B B 4B 2B 8B B 4B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about 59 75 100 50 59 75 100 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The devices which are installed for drawing water from the sources are called Aquiclude Intakes Aquifers Filters Aquiclude Intakes Aquifers Filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method for disinfection of swimming pool water is Chlorination By using potassium permanganate Ultra violet rays treatment Lime treatment Chlorination By using potassium permanganate Ultra violet rays treatment Lime treatment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Increasing flow of sewage through imhoff tanks Reducing the excessive flow in sewers Disposing of sludge Increasing the capacity of storage reservoirs Increasing flow of sewage through imhoff tanks Reducing the excessive flow in sewers Disposing of sludge Increasing the capacity of storage reservoirs ANSWER DOWNLOAD EXAMIANS APP
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