Environmental Engineering in CE Which of the following is not a secondary air pollutant? Sulphur dioxide Photochemical smog All of these Ozone Sulphur dioxide Photochemical smog All of these Ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Boundary layer separation Cavitation Fluctuation in liquid flow Pipe vibrations Boundary layer separation Cavitation Fluctuation in liquid flow Pipe vibrations ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Nitric acid Sulphuric acid Iron & steel Chloralkali Nitric acid Sulphuric acid Iron & steel Chloralkali 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. Saphrophytic Aerobic Parasitic Anaerobic Saphrophytic Aerobic Parasitic Anaerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 9 to 10 4 to 5 1 to 2 15 to 20 9 to 10 4 to 5 1 to 2 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE COD of raw municipal sewage may be in the range of about __________ mg/litre. 5-10 1-2 90-120 1500-2500 5-10 1-2 90-120 1500-2500 ANSWER DOWNLOAD EXAMIANS APP
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