Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 100 ppm 50 ppm 300 ppm 700 ppm 100 ppm 50 ppm 300 ppm 700 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 1-2 150-300 5-10 2000-3000 1-2 150-300 5-10 2000-3000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas? Electrostatic precipitator Gravity settling chamber Hydrocyclone Packed scrubber Electrostatic precipitator Gravity settling chamber Hydrocyclone Packed scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Preheating of feed water Keeping the pH value of feed water just below 7 Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water Preheating of feed water Keeping the pH value of feed water just below 7 Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ bacteria in water causes disease like typhoid. Anaerobic Pathogenic Aerobic Non-pathogenic Anaerobic Pathogenic Aerobic Non-pathogenic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 250 10 1 1000 250 10 1 1000 ANSWER DOWNLOAD EXAMIANS APP
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