Environmental Engineering in CE Which is a secondary air pollutant? Sulphur dioxide Nitrogen dioxide Photochemical smog Dust particles Sulphur dioxide Nitrogen dioxide Photochemical smog Dust particles ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Salt content in sea water is about __________ percent. 0.5 1 10 3.5 0.5 1 10 3.5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pick out the one which is not a chemical coagulant. Aluminium sulphate Hydrated lime Ferrous sulphate Chloramine Aluminium sulphate Hydrated lime Ferrous sulphate Chloramine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank Only (iii) (i) and (iii) (i) and (ii) Only (i) Only (iii) (i) and (iii) (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 5 2000 1000 500 5 2000 1000 500 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 Both (i) and (ii) Both (i) and (iii) Only (i) Only (iii) Both (i) and (ii) Both (i) and (iii) Only (i) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS