Environmental Engineering in CE Polluted water having low BOD are most economically treated in Oxidation ponds Clarifier Sedimentation tanks Sludge digester Oxidation ponds Clarifier Sedimentation tanks Sludge digester ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Ferric chloride Lime Sodium aluminate Alum (aluminium sulphate) Ferric chloride Lime Sodium aluminate Alum (aluminium sulphate) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 5000 5 50 2000 5000 5 50 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? N₂ CO₂ SO₃ H₂ N₂ CO₂ SO₃ H₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by Electrostatic precipitators Dust catcher Bag filter Wet scrubber Electrostatic precipitators Dust catcher Bag filter Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Arsenic Iron & manganese Carbonates Bi-carbonates Arsenic Iron & manganese Carbonates ANSWER DOWNLOAD EXAMIANS APP
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