Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Silica gel Bog iron (iron oxide) Pulverised limestone Active carbon Silica gel Bog iron (iron oxide) Pulverised limestone Active carbon ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The common pollutant generated in chlor-alkali industry and battery manufacture is Brine Phosphate Mercury None of these Brine Phosphate Mercury None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 4 to 5 9 to 10 1 to 2 15 to 20 4 to 5 9 to 10 1 to 2 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? SO₂ H₂S Hydrocarbons CO SO₂ H₂S Hydrocarbons CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 10-100 100-200 100-1000 10-100 100-200 100-1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? Deforestation Forest fire Volcanic eruption None of these Deforestation Forest fire Volcanic eruption None of these ANSWER DOWNLOAD EXAMIANS APP
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