Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 85 145 105 125 85 145 105 125 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of CO₂ Hydrocarbons SO₂ CFC (chloro fluoro carbon) CO₂ Hydrocarbons SO₂ CFC (chloro fluoro carbon) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Radioactive solid nuclear wastes are disposed off by High temperature incineration Pathological incineration Pyrolysis Underground burial in concrete containers High temperature incineration Pathological incineration Pyrolysis Underground burial in concrete containers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. None of these Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in Increase the dew point of None of these Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in Increase the dew point of ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Reduction Oxidation Dehydration Fermentation Reduction Oxidation Dehydration Fermentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ionisation potential employed in the industrial electrostatic precipitator is of the order of 230 V AC 230 V DC 30 to 70 kV DC 30 to 70 kV AC 230 V AC 230 V DC 30 to 70 kV DC 30 to 70 kV AC ANSWER DOWNLOAD EXAMIANS APP
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