Environmental Engineering in CE Which of the following is not a weightless pollutant? SPM Noise pollution Radioactive rays Thermal pollution SPM Noise pollution Radioactive rays Thermal pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Iodine Iron Bromine Zinc Iodine Iron Bromine Zinc ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Siderosis is a disease caused by the inhalation of __________ dust. Coal Iron Silica None of these Coal Iron Silica None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? Nitrous oxide All of these Chlorofluro carbons (CFC) Methane Nitrous oxide All of these Chlorofluro carbons (CFC) Methane 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. 80 88 84 92 80 88 84 92 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by Gravity separator having oil skimming devices Aerated lagoons Trickling filters Biological oxygen pond Gravity separator having oil skimming devices Aerated lagoons Trickling filters Biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
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