Environmental Engineering in CE Most of the atmospheric air pollutants are present in large quantity in Stratosphere Thermosphere Trophosphere Mesosphere Stratosphere Thermosphere Trophosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called Smoke Fumes Mists Aerosols Smoke Fumes Mists Aerosols ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine Alkalis Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine Alkalis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerobic biological oxidation ponds used for the purification of polluted water All of these Destroys/removes pathogen much more effectively if the sewage is chlorinated Destroys/removes pathogen from the sewage Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents All of these Destroys/removes pathogen much more effectively if the sewage is chlorinated Destroys/removes pathogen from the sewage Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 0.1 25 5 1 0.1 25 5 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the Increased drying & hardening time of paints Acceleration of corrosion rates of metals All of these Reduction in strength of leather & cloth Increased drying & hardening time of paints Acceleration of corrosion rates of metals All of these Reduction in strength of leather & cloth ANSWER DOWNLOAD EXAMIANS APP
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