Environmental Engineering Which of the following values of pH represents a stronger acid? 3 4 2 5 3 4 2 5 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 300 ppm 100 ppm 200 ppm 400 ppm 300 ppm 100 ppm 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection of water results in Complete sterilisation Removal of hardness Removal of turbidity Killing of disease bacteria Complete sterilisation Removal of hardness Removal of turbidity Killing of disease bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Hydrogen sulphide Carbon dioxide Nitrogen Methane Hydrogen sulphide Carbon dioxide Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is Hardy cross method Electrical analysis method Circle method Equivalent pipe method Hardy cross method Electrical analysis method Circle method Equivalent pipe method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The disinfection efficiency of chlorine increases by (i) Decreasing the time of contact (ii) Decreasing the temperature of water (iii) Increasing the temperature of water Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
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