Environmental Engineering in CE Which of the following dust collection equipments is the least efficient (for sub-micronic particles)? Bag filter Hollow wet scrubber Cyclone separator Dust catcher (gravity type) Bag filter Hollow wet scrubber Cyclone separator Dust catcher (gravity type) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Suspended solids Alkalis Chlorine Phenol and cynide Suspended solids Alkalis Chlorine Phenol and cynide 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 3 20 1 7 3 20 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Radioactive substances present in the polluted water stream can be removed by None of these Coagulation and filtration Adsorption in ion exchange materials Biological oxygen treatment None of these Coagulation and filtration Adsorption in ion exchange materials Biological oxygen treatment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? N₂ SO₃ CO₂ H₂ N₂ SO₃ CO₂ H₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Carbonates Sulphides Chlorides Bi-carbonates Carbonates Sulphides Chlorides Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
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