Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 10000 to 100000 6000 to 9000 3000 to 6000 1000 to 2000 10000 to 100000 6000 to 9000 3000 to 6000 1000 to 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a manmade source of air pollution? All of these Bacterial action in soil and swamp areas Forest fire Automobile exhaust All of these Bacterial action in soil and swamp areas Forest fire Automobile exhaust ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Arsenic Lead Aluminium Mercury Arsenic Lead Aluminium Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of All of these Ozone and iodine Ultraviolet light for irradiation of water Chlorine or its compounds All of these Ozone and iodine Ultraviolet light for irradiation of water Chlorine or its compounds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur? Troposphere None of these Thermosphere Stratosphere Troposphere None of these Thermosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a practical method of low level radioactive waste disposal? 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 Filling in steel crates and shooting it off out of earth Dilution with inert material Discharging to atmosphere through tall stacks after dilution ANSWER DOWNLOAD EXAMIANS APP
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