Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 6.5 to 8.0 10.5 to 12.0 8.5 to 10.0 4.5 to 6.0 6.5 to 8.0 10.5 to 12.0 8.5 to 10.0 4.5 to 6.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally More and less Less and less Less and more More and more More and less Less and less Less and more More and more ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by Chlorination Oxidation Nitrification None of these Chlorination Oxidation Nitrification None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A pipe which is installed in the house drainage to preserve the water seal of traps is called Waste pipe Anti-siphonage pipe Soil pipe Vent pipe Waste pipe Anti-siphonage pipe Soil pipe Vent pipe 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
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 350 to 500 50 to 150 0 to 50 150 to 350 350 to 500 50 to 150 0 to 50 150 to 350 ANSWER DOWNLOAD EXAMIANS APP
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