Environmental Engineering in CE Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? Hydrogen fluoride & nitrogen oxides Carbon monoxide Smog & ozone Sulphur dioxide & spray of weed killers Hydrogen fluoride & nitrogen oxides Carbon monoxide Smog & ozone Sulphur dioxide & spray of weed killers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? Dust catcher (gravity type) Cyclone separator Hollow wet scrubber Bag filter Dust catcher (gravity type) Cyclone separator Hollow wet scrubber Bag filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream? Circular clarifier Sedimentation tank Mechanical flocculation Chemical coagulation Circular clarifier Sedimentation tank Mechanical flocculation Chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Salt content in sea water is about __________ percent. 0.5 3.5 10 1 0.5 3.5 10 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Turbidity Suspended silica Dissolved oxygen Caustic embrittlement Turbidity Suspended silica Dissolved oxygen Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from petroleum refineries is CO₂, H₂S & NO₂ CO, SO₂ & H₂S CO₂, NO & SO₃ SO₃, NO₂ & CO₂ CO₂, H₂S & NO₂ CO, SO₂ & H₂S CO₂, NO & SO₃ SO₃, NO₂ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
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