Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 5-10 2000-3000 1-2 150-300 5-10 2000-3000 1-2 150-300 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Iron & manganese Arsenic Carbonates Bi-carbonates Iron & manganese Arsenic Carbonates Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Alkalis Suspended solids Phenol and cynide Chlorine Alkalis Suspended solids Phenol and cynide Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Pneumoconiosis' is a disease caused by the inhalation of __________ dust. Coal Uranium ore Lime Iron ore Coal Uranium ore Lime Iron ore ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a practical method of low level radioactive waste disposal? Filling in steel crates and shooting it off out of earth Dilution with inert material Discharging to atmosphere through tall stacks after dilution Disposing off in rivers & oceans Filling in steel crates and shooting it off out of earth Dilution with inert material Discharging to atmosphere through tall stacks after dilution Disposing off in rivers & oceans ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerobic biological oxidation ponds used for the purification of polluted water Destroys/removes pathogen from the sewage Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents All of these Destroys/removes pathogen much more effectively if the sewage is chlorinated Destroys/removes pathogen from the sewage Is not very effective for nonbiodegradable substances (e.g. ABS) containing effluents All of these Destroys/removes pathogen much more effectively if the sewage is chlorinated ANSWER DOWNLOAD EXAMIANS APP
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