Environmental Engineering in CE COD of raw municipal sewage may be in the range of about __________ mg/litre. 90-120 1500-2500 1-2 5-10 90-120 1500-2500 1-2 5-10 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 Dust catcher (gravity type) Bag filter Cyclone separator Hollow wet scrubber Dust catcher (gravity type) Bag filter Cyclone separator 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 0.1 1 0.01 4 0.1 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes Gastritis & diarrhea Paralysis of muscles & loss of appetite Nervous depression All of these Gastritis & diarrhea Paralysis of muscles & loss of appetite Nervous depression All of these 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 Treating in biological oxygen pond None of these Chemical coagulation Chlorination Treating in biological oxygen pond None of these Chemical coagulation Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is the process of killing organism in water. Disinfection Coagulation Sedimentation Sterilisation Disinfection Coagulation Sedimentation Sterilisation ANSWER DOWNLOAD EXAMIANS APP
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