Environmental Engineering in CE Most of the atmospheric air pollutants are present in large quantity in Stratosphere Mesosphere Thermosphere Trophosphere Stratosphere Mesosphere Thermosphere Trophosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? Volcanic eruption Deforestation Forest fire None of these Volcanic eruption Deforestation Forest fire None of these 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 Mechanical flocculation Chemical coagulation Sedimentation tank Circular clarifier Mechanical flocculation Chemical coagulation Sedimentation tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of coagulant needed for coagulation of water increases with(i) Increase in turbidity of water(ii) Decrease in turbidity of water(iii) Increase in temperature of water(iv) Decrease in temperature of waterThe correct answer is (i)and(iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i)and(iv) (i) and (ii) (ii) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? Hollow wet scrubber Bag filter Dust catcher (gravity type) Cyclone separator Hollow wet scrubber Bag filter Dust catcher (gravity type) Cyclone separator ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Skimming tank Grit chamber Trickling filter Detritus tank Skimming tank Grit chamber Trickling filter Detritus tank ANSWER DOWNLOAD EXAMIANS APP
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