Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Chlorination Biological oxidation Skimming off Sedimentation Chlorination Biological oxidation Skimming off Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes Bronchitis Bone disease Skin disorder Cancer Bronchitis Bone disease Skin disorder Cancer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ bacteria in water causes disease like typhoid. Aerobic Non-pathogenic Anaerobic Pathogenic Aerobic Non-pathogenic Anaerobic Pathogenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hydrogen ion concentration in distilled water is 10⁷ 10⁻⁷ 7 x 10⁷ 7 x 10⁻⁷ 10⁷ 10⁻⁷ 7 x 10⁷ 7 x 10⁻⁷ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Nitrogen oxides (NOx) is not produced in the __________ industry. Detergent Nitric acid making Nitrogenous fertiliser Any of these Detergent Nitric acid making Nitrogenous fertiliser Any of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent. 92 80 88 84 92 80 88 84 ANSWER DOWNLOAD EXAMIANS APP
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