Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 0.2 to 0.4 0.4 to 1.0 5 to 7 2 to 4 0.2 to 0.4 0.4 to 1.0 5 to 7 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about 59 75 50 100 59 75 50 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Carbon dioxide Bleaching powder Chloramines Sulphur dioxide Carbon dioxide Bleaching powder Chloramines Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called Waste pipe Soil pipe Vent pipe Anti-siphonage pipe Waste pipe Soil pipe Vent pipe Anti-siphonage pipe ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum permissible limit for fluoride in drinking water is 0.1 mg/liter 10 mg/liter 1.5 mg/liter 5 mg/liter 0.1 mg/liter 10 mg/liter 1.5 mg/liter 5 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 0 to 50 150 to 350 50 to 150 350 to 500 0 to 50 150 to 350 50 to 150 350 to 500 ANSWER DOWNLOAD EXAMIANS APP
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