Environmental Engineering in CE Polluted water having low BOD are most economically treated in Sludge digester Clarifier Oxidation ponds Sedimentation tanks Sludge digester Clarifier Oxidation ponds Sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Sulphides Chlorides Bi-carbonates Carbonates Sulphides Chlorides Bi-carbonates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 24 to 32 8 to 12 16 to 20 2 to 4 24 to 32 8 to 12 16 to 20 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent. 12 4 1 8 12 4 1 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Parasitic Aerobic Anaerobic Saphrophytic Parasitic Aerobic Anaerobic Saphrophytic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Oxidation Dehydration Fermentation Reduction Oxidation Dehydration Fermentation Reduction ANSWER DOWNLOAD EXAMIANS APP
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