Environmental Engineering In facultative stabilization pond, the sewage is treated by Dual action of aerobic bacteria and anaerobic bacteria Algae only Sedimentation Aerobic bacteria only Dual action of aerobic bacteria and anaerobic bacteria Algae only Sedimentation Aerobic bacteria only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 43833 43864 43894 1 43833 43864 43894 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is (i) Presumptive coli-form test (ii) Confirmed coli-form test (iii) Completed coli-form test Both (i) and (ii) Both (i) and (iii) Only (i) All (i), (ii) and (iii) Both (i) and (ii) Both (i) and (iii) Only (i) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum permissible limit for fluoride in drinking water is 1.5 mg/liter 10 mg/liter 0.1 mg/liter 5 mg/liter 1.5 mg/liter 10 mg/liter 0.1 mg/liter 5 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In chlorination, with the rise in temperature of water, death rate of bacteria None of these Decreases Increases Remains unaffected None of these Decreases Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Depth of tank Both depth and surface area of tank None of these Surface area of tank Depth of tank Both depth and surface area of tank None of these Surface area of tank ANSWER DOWNLOAD EXAMIANS APP
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