Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Sulphur dioxide Carbon dioxide Chloramines Bleaching powder Sulphur dioxide Carbon dioxide Chloramines Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be 400 ppm 100 ppm 200 ppm 300 ppm 400 ppm 100 ppm 200 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The distribution mains are designed for Average daily demand Maximum hourly demand on maximum day Maximum hourly demand Maximum daily demand Average daily demand Maximum hourly demand on maximum day Maximum hourly demand Maximum daily demand ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Chlorine demand of water is equal to Residual chlorine Applied chlorine Sum of applied and residual chlorine Difference of applied and residual chlorine Residual chlorine Applied chlorine Sum of applied and residual chlorine Difference of applied and residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The major disadvantage of lime soda process of water softening is that The effluent cannot be reduced to zero hardness It is unsuitable for softening the water of excessive hardness It is unsuitable for turbid and acidic water Huge amount of precipitate is formed which creates a disposal problem The effluent cannot be reduced to zero hardness It is unsuitable for softening the water of excessive hardness It is unsuitable for turbid and acidic water Huge amount of precipitate is formed which creates a disposal problem ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Hardness in water Residual chlorine in water Dissolved oxygen in water Turbidity in water Hardness in water Residual chlorine in water Dissolved oxygen in water Turbidity in water ANSWER DOWNLOAD EXAMIANS APP
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