Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? NH₃ NO₂ CO SO₂ & SO₃ NH₃ NO₂ CO SO₂ & SO₃ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Powder Aggregates Smoke Grit Powder Aggregates Smoke Grit ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is A secondary pollutant Both B & C Impervious to ultra-violet rays A primary pollutant A secondary pollutant Both B & C Impervious to ultra-violet rays A primary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 80 145 125 100 80 145 125 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Nitric acid Iron & steel Sulphuric acid Chloralkali Nitric acid Iron & steel Sulphuric acid Chloralkali ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds All of these Use micro-organisms/bacteria in presence of dissolved oxygen Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds All of these Use micro-organisms/bacteria in presence of dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
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