Environmental Engineering in CE Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of Ultraviolet light for irradiation of water All of these Ozone and iodine Chlorine or its compounds Ultraviolet light for irradiation of water All of these Ozone and iodine Chlorine or its compounds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank. Digestion Both B and C Sedimentation Filtration Digestion Both B and C Sedimentation Filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Bromine Zinc Iodine Iron Bromine Zinc Iodine Iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? Evaporation & chemical precipitation Biological methods & adsorption in ion exchange materials Fixing into a solid mass with cement and sinking deep in the sea All of these Evaporation & chemical precipitation Biological methods & adsorption in ion exchange materials Fixing into a solid mass with cement and sinking deep in the sea All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of bacteria in potable (drinking) water causes Bad taste & colour Turbidity Bad odour Disease Bad taste & colour Turbidity Bad odour Disease ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. 0.05 6.5 15 1 0.05 6.5 15 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS