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
Environmental Engineering in CE The disinfection efficiency of chlorine increases by(i) Decreasing the time of contact(ii) Decreasing the temperature of water(iii) Increasing the temperature of water Only (iii) Both (i) and (ii) Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) Only (i) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water. Total solids Turbidity All of these Color (Hazen) Total solids Turbidity All of these Color (Hazen) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by Filtration and recycling for cooling coke oven gas Discharging in the river stream Quenching of hot coke None of these Filtration and recycling for cooling coke oven gas Discharging in the river stream Quenching of hot coke None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Poly acrylonitrile Benzopyrene Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile Poly acrylonitrile Benzopyrene Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of bacteria in potable (drinking) water causes Bad taste & colour Bad odour Disease Turbidity Bad taste & colour Bad odour Disease Turbidity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS