Environmental Engineering in CE Which of the following is not a weightless pollutant? Noise pollution SPM Thermal pollution Radioactive rays Noise pollution SPM Thermal pollution Radioactive rays 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 CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10² 10⁵ 10¹⁵ 10⁹ 10² 10⁵ 10¹⁵ 10⁹ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main type of sludge gas evolved during sewage treatment in Imhoff tank is H₂ CH₄ CO₂ CO H₂ CH₄ CO₂ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Smoke Grit Powder Aggregates Smoke Grit Powder Aggregates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh domestic sewage is __________ in color. Red Grey Dark brown Black Red Grey Dark brown Black ANSWER DOWNLOAD EXAMIANS APP
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