Environmental Engineering in CE Aerobic biological oxidation ponds used for the purification of polluted water Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents Destroys/removes pathogen from the sewage Destroys/removes pathogen much more effectively if the sewage is chlorinated All of these Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents Destroys/removes pathogen from the sewage Destroys/removes pathogen much more effectively if the sewage is chlorinated All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel. 5 1 20 10 5 1 20 10 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. 88 84 80 92 88 84 80 92 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Radioactive solid nuclear wastes are disposed off by Pathological incineration High temperature incineration Pyrolysis Underground burial in concrete containers Pathological incineration High temperature incineration Pyrolysis Underground burial in concrete containers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Color test of water is done with an instrument called Colorimeter Electro-chemical cell Turbidimeter Tintometer Colorimeter Electro-chemical cell Turbidimeter Tintometer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbonaceous particles having size less than 1 μm are called Aerosols Smoke Grit Aggregates Aerosols Smoke Grit Aggregates ANSWER DOWNLOAD EXAMIANS APP
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