Environmental Engineering in CE The pH value of potable water should be between 6.5 to 8 1 to 1.5 4 to 5 13 to 14 6.5 to 8 1 to 1.5 4 to 5 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main type of sludge gas evolved during sewage treatment in Imhoff tank is CO H₂ CH₄ CO₂ CO H₂ CH₄ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 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) Only (iii) Both (i) and (iii) Both (i) and (ii) Only (i) Only (iii) Both (i) and (iii) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following fine dust removal equipments is the most efficient? Bag filter Scrubber Electrostatic precipitator Cyclone separator Bag filter Scrubber Electrostatic precipitator Cyclone separator ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called None of these Incineration Biological oxidation Composting None of these Incineration Biological oxidation Composting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most detrimental for water used in high pressure boiler? Turbidity Phenol Silica Dissolved oxygen Turbidity Phenol Silica Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS