Environmental Engineering in CE Noise level in a quiet private business office is about __________ decibels. 85 25 50 70 85 25 50 70 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 300 ppm 50 ppm 100 ppm 700 ppm 300 ppm 50 ppm 100 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Parasitic Saphrophytic Aerobic Anaerobic Parasitic Saphrophytic Aerobic Anaerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes Blood poisoning All of these Nervous system disorder Anaemia Blood poisoning All of these Nervous system disorder Anaemia ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Ozone Sulphur dioxide All of these Photochemical smog Ozone Sulphur dioxide All of these Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. Radioactive Inorganic Organic None of these Radioactive Inorganic Organic None of these ANSWER DOWNLOAD EXAMIANS APP
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