Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? H₂S Hydrocarbons CO SO₂ H₂S Hydrocarbons CO SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Trickling filter Skimming tank Grit chamber Detritus tank Trickling filter Skimming tank Grit chamber Detritus tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 200 100 400 20 200 100 400 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Neither A nor B Using the activities of bacteria and other micro organisms Aerobic oxidation Both A & B Neither A nor B Using the activities of bacteria and other micro organisms Aerobic oxidation Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Silica gel Active carbon Bog iron (iron oxide) Pulverised limestone Silica gel Active carbon Bog iron (iron oxide) Pulverised limestone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level during normal conversation among men is about __________ decibles. 45 90 10 115 45 90 10 115 ANSWER DOWNLOAD EXAMIANS APP
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