Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Au-198 Sr-90 Ra-226 I-131 Au-198 Sr-90 Ra-226 I-131 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 50 ppm 100 ppm 300 ppm 700 ppm 50 ppm 100 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes Turbidity Foaming Odour nuisances Undesirable plant growth Turbidity Foaming Odour nuisances Undesirable plant growth ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Bromine Zinc Iron Iodine Bromine Zinc Iron Iodine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in Petroleum refinery Municipal sewage treatment Iron & steel plant Food industry Petroleum refinery Municipal sewage treatment Iron & steel plant Food industry ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 100 25 1000 0.1 100 25 1000 0.1 ANSWER DOWNLOAD EXAMIANS APP
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