Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Coagulation Disinfection Filtration Sedimentation Coagulation Disinfection Filtration Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 9 to 10 15 to 20 1 to 2 4 to 5 9 to 10 15 to 20 1 to 2 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants? F Hg SO₂ NOx F Hg SO₂ NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? CO NO₂ SO₂ & SO₃ NH₃ CO NO₂ SO₂ & SO₃ NH₃ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 0.01 4 1 0.1 0.01 4 1 0.1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Corrosion of building materials Reduction in plant's productivity owing to acid rain Respiratory & lung disease All of these Corrosion of building materials Reduction in plant's productivity owing to acid rain Respiratory & lung disease All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS