Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Sulphuric acid plant Thermal power plant Nitric acid plant Petroleum refinery Sulphuric acid plant Thermal power plant Nitric acid plant Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 5 50 1 500 5 50 1 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 5000 1000 50 2000 5000 1000 50 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The principal gas evolved from sludge digestion tank is N₂ CH₄ CO₂ CO N₂ CH₄ CO₂ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Positively charged Negatively charged Neutral Combination of all A, B & C Positively charged Negatively charged Neutral Combination of all A, B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 150 90 180 120 150 90 180 120 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS