Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Weed control in reservoirs Removal of permanent hardness Taste & odour control Disinfection Weed control in reservoirs Removal of permanent hardness Taste & odour control Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? Deforestation Volcanic eruption Forest fire None of these Deforestation Volcanic eruption Forest fire None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 7 1 3 20 7 1 3 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 500 5 250 100 500 5 250 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by Chemical coagulation Treating in biological oxygen pond None of these Chlorination Chemical coagulation Treating in biological oxygen pond None of these Chlorination 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 Cyclone separator Bag filter Dust catcher (gravity type) Hollow wet scrubber Cyclone separator Bag filter Dust catcher (gravity type) ANSWER DOWNLOAD EXAMIANS APP
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