Environmental Engineering The effective size of sand particles used in slow sand filters is 0.35 to 0.60 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.35 to 0.60 mm 0.25 to 0.35 mm 1.00 to 1.80 mm 0.60 to 1.00 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Carbon dioxide Nitrogen Methane Hydrogen sulphide Carbon dioxide Nitrogen Methane Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hourly variation factor is usually taken as 1.5 1.8 2.0 2.7 1.5 1.8 2.0 2.7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Chlorine demand of water is equal to Applied chlorine Difference of applied and residual chlorine Residual chlorine Sum of applied and residual chlorine Applied chlorine Difference of applied and residual chlorine Residual chlorine Sum of applied and residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Average rate of water consumption per head per day as per Indian Standard is 165 liters 135 liters 200 liters 100 liters 165 liters 135 liters 200 liters 100 liters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 5 - 10 years 28 - 30 years 15 - 28 years 15 - 20 years 5 - 10 years 28 - 30 years 15 - 28 years 15 - 20 years ANSWER DOWNLOAD EXAMIANS APP
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