Environmental Engineering Corrosion in concrete sewers is caused by Dissolved oxygen Septic conditions Nitrogen Chlorine Dissolved oxygen Septic conditions Nitrogen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following retards the self purification of stream? Sunlight Higher temperature Satisfying oxygen demand None of these Sunlight Higher temperature Satisfying oxygen demand None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is Reinforced cement concrete Copper Steel Cast iron Reinforced cement concrete Copper Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Reducing the excessive flow in sewers Increasing the capacity of storage reservoirs Increasing flow of sewage through imhoff tanks Disposing of sludge Reducing the excessive flow in sewers Increasing the capacity of storage reservoirs Increasing flow of sewage through imhoff tanks Disposing of sludge ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Higher turbidity in the effluent Excessive negative head Low temperature Mud ball formation Higher turbidity in the effluent Excessive negative head Low temperature Mud ball formation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 50 to 60 500 to 600 1400 to 1500 100 to 150 50 to 60 500 to 600 1400 to 1500 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
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