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 (i) Both (i) and (ii) Only (iii) Both (i) and (iii) Only (i) Both (i) and (ii) Only (iii) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. 1 0.05 15 6.5 1 0.05 15 6.5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The per capital consumption of a locality is affected by(i) Climatic conditions(ii) Quality of water(iii) Distribution pressure Only (i) Both (i) and (iii) Both (i) and (ii) All (i), (ii) and (iii) Only (i) Both (i) and (iii) Both (i) and (ii) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Chlorination Ion exchange process Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Chlorination Ion exchange process Oxidation followed by settling & filtration Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Reinglemann chart is used for the measurement of the Exhaust gas density Flue gas temperature Combustibles present in automobile exhaust Smoke density from a chimey Exhaust gas density Flue gas temperature Combustibles present in automobile exhaust Smoke density from a chimey ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. Potassium cyanide None of these Coal ash Ortho-xylene Potassium cyanide None of these Coal ash Ortho-xylene ANSWER DOWNLOAD EXAMIANS APP
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