Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Hydrogen Petrol vapor Carbon monoxide Acetylene Hydrogen Petrol vapor Carbon monoxide Acetylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of mercury in potable (drinking) water is about __________ ppm. 0.001 0.1 1 5 0.001 0.1 1 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Keeping the pH value of feed water just below 7 Reduction in hardness, silica & alumina in feed water Preheating of feed water Eliminating H₂S in feed water Keeping the pH value of feed water just below 7 Reduction in hardness, silica & alumina in feed water Preheating of feed water Eliminating H₂S in feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Sedimentation Coagulation Filtration Disinfection Sedimentation Coagulation Filtration Disinfection 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
Environmental Engineering in CE Exposure to chemicals having carcinogenic properties cause Dermatitis (skin disorder) Cancer Asphyxiation (suffocation) Asthma Dermatitis (skin disorder) Cancer Asphyxiation (suffocation) Asthma ANSWER DOWNLOAD EXAMIANS APP
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