Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? CO SO₂ Hydrocarbons H₂S CO SO₂ Hydrocarbons H₂S ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan Neither A nor B With greater number of blades Of increased diameter Both A & B Neither A nor B With greater number of blades Of increased diameter Both A & B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 200 20 100 400 200 20 100 400 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Pneumoconiosis' is a disease caused by the inhalation of __________ dust. Iron ore Uranium ore Lime Coal Iron ore Uranium ore Lime Coal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Hydrogen Acetylene Petrol vapor Carbon monoxide Hydrogen Acetylene Petrol vapor Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 2000 1000 50 5000 2000 1000 50 5000 ANSWER DOWNLOAD EXAMIANS APP
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