Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 1 0.1 25 5 1 0.1 25 5 ANSWER DOWNLOAD EXAMIANS APP
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? I-131 Ra-226 Au-198 Sr-90 I-131 Ra-226 Au-198 Sr-90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Decibel Hertz Roentgen None of these Decibel Hertz Roentgen None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Explosion Non biodegradable foam Undesirable plant growth Corrosion Explosion Non biodegradable foam Undesirable plant growth Corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of lead for public sewer/waste water is about __________ ppm. 650 25 150 1 650 25 150 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Lagoons Biological oxygen pond Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Filtration Lagoons Biological oxygen pond Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Filtration ANSWER DOWNLOAD EXAMIANS APP
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