Environmental Engineering in CE Which of the following is a secondary air pollutant? Photochemical smog Dust particles Nitrogen dioxide Sulphur dioxide Photochemical smog Dust particles Nitrogen dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following sources is responsible for maximum air pollution? Forest fire Industrial chimney exhaust Automobiles exhaust Photochemical oxidation of organic matter Forest fire Industrial chimney exhaust Automobiles exhaust Photochemical oxidation of organic matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Insufficient washing of sand grains in a rapid sand filter causes Mud balls Shrinkage of filtering media Expansion of filtering media Air binding Mud balls Shrinkage of filtering media Expansion of filtering media Air binding ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes None of these Discoloration of bathroom fixtures Temporary hardness Reduction in its dissolved oxygen content None of these Discoloration of bathroom fixtures Temporary hardness Reduction in its dissolved oxygen content ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Saphrophytic Anaerobic Parasitic Aerobic Saphrophytic Anaerobic Parasitic Aerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The lowest layer of atmosphere is known as the Stratosphere None of these Troposphere Ionosphere Stratosphere None of these Troposphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
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