Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Arsenic Iron & manganese Carbonates Bi-carbonates Arsenic Iron & manganese Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Pneumoconiosis' is a disease caused by the inhalation of __________ dust. Coal Iron ore Uranium ore Lime Coal Iron ore Uranium ore Lime ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. None of these Aerobic decomposition Separation Anaerobic decomposition None of these Aerobic decomposition Separation Anaerobic decomposition ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Filtration Disinfection Coagulation Sedimentation Filtration Disinfection Coagulation Sedimentation 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 Both A & B With greater number of blades Neither A nor B Of increased diameter Both A & B With greater number of blades Neither A nor B Of increased diameter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in Iron & steel plant Food industry Petroleum refinery Municipal sewage treatment Iron & steel plant Food industry Petroleum refinery Municipal sewage treatment ANSWER DOWNLOAD EXAMIANS APP
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