Environmental Engineering Period of cleaning of slow sand filters is about 24 - 48 hours 10 - 12 days 2 - 3 months 1 - 2 year 24 - 48 hours 10 - 12 days 2 - 3 months 1 - 2 year ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 20 mm/hr 4 mm/hr 10 mm/hr 40 mm/hr 20 mm/hr 4 mm/hr 10 mm/hr 40 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Partially combined system Separate system Combined system Partially separate system Partially combined system Separate system Combined system Partially separate system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs Reducing the excessive flow in sewers Disposing of sludge Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs Reducing the excessive flow in sewers Disposing of sludge ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Chlorine demand of water is equal to Sum of applied and residual chlorine Applied chlorine Residual chlorine Difference of applied and residual chlorine Sum of applied and residual chlorine Applied chlorine Residual chlorine Difference of applied and residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most common cause of acidity in water is Hydrogen Carbon dioxide Nitrogen Oxygen Hydrogen Carbon dioxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
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