Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Simple filtration Chlorination only Chemical coagulation Oxidation followed by settling & filtration Simple filtration Chlorination only Chemical coagulation Oxidation followed by settling & filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyl and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) Acts as a green house gas thereby raising earth's temperature Causes asphyxia Inhances the green house effect Causes increase in sea level Acts as a green house gas thereby raising earth's temperature Causes asphyxia Inhances the green house effect Causes increase in sea level 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) Bag filter Cyclone separator Hollow wet scrubber Dust catcher (gravity type) Bag filter Cyclone separator Hollow wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is the minimum (about 0.02 ppm). MIC (methyl iso-cynate) Bromine Ozone Phosgene MIC (methyl iso-cynate) Bromine Ozone Phosgene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Cancer Corrosion Asphyxiation Bronchitis Cancer Corrosion Asphyxiation Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In sedimentation tanks equipped with mechanical scrapper In clarifiers In vacuum filter By chemical coagulation In sedimentation tanks equipped with mechanical scrapper In clarifiers In vacuum filter By chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
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