Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? NO₂ SO₂ & SO₃ NH₃ CO NO₂ SO₂ & SO₃ NH₃ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Saphrophytic Aerobic Parasitic Anaerobic Saphrophytic Aerobic Parasitic Anaerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas? Hydrocyclone Electrostatic precipitator Gravity settling chamber Packed scrubber Hydrocyclone Electrostatic precipitator Gravity settling chamber Packed scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 3000 to 6000 1000 to 2000 6000 to 9000 10000 to 100000 3000 to 6000 1000 to 2000 6000 to 9000 10000 to 100000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrocarbons Nitrogen dioxide Hydrogen sulphides Hydrogen flouride Hydrocarbons Nitrogen dioxide Hydrogen sulphides Hydrogen flouride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel. 1 5 20 10 1 5 20 10 ANSWER DOWNLOAD EXAMIANS APP
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