Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 5 25 1 0.1 5 25 1 0.1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE World environment day is observed every year on the 5th of July December June September July December June September 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 Filtration 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) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hydrogen ion concentration in distilled water is 7 x 10⁻⁷ 7 x 10⁷ 10⁻⁷ 10⁷ 7 x 10⁻⁷ 7 x 10⁷ 10⁻⁷ 10⁷ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 230 750 20 1500 230 750 20 1500 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 Ultraviolet light for irradiation of water Chlorine or its compounds Ozone and iodine All of these Ultraviolet light for irradiation of water Chlorine or its compounds Ozone and iodine All of these ANSWER DOWNLOAD EXAMIANS APP
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