Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Saphrophytic Parasitic Aerobic Anaerobic Saphrophytic Parasitic Aerobic Anaerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is CO, CO₂ & SO₂ SO₃, NO₂ & CO₂ H₂S, NO & SO₃ CO₂, H₂S & NO₂ CO, CO₂ & SO₂ SO₃, NO₂ & CO₂ H₂S, NO & SO₃ CO₂, H₂S & NO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 20 60 120 90 20 60 120 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ bacteria in water causes disease like typhoid. Aerobic Pathogenic Anaerobic Non-pathogenic Aerobic Pathogenic Anaerobic Non-pathogenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pollution by particulate matter emission in the atmosphere does not take place during metal Machining Grinding Polishing Cutting Machining Grinding Polishing Cutting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10⁵ 10² 10⁹ 10¹⁵ 10⁵ 10² 10⁹ 10¹⁵ ANSWER DOWNLOAD EXAMIANS APP
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