Environmental Engineering in CE Which of the following is not a secondary air pollutant? Sulphur dioxide All of these Ozone Photochemical smog Sulphur dioxide All of these Ozone Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Foul odour and bad taste of water is removed by treating with Bleaching powder Copper sulphate Activated carbon Alum Bleaching powder Copper sulphate Activated carbon Alum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 150 120 90 180 150 120 90 180 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Turbidity of water is an indication of the presence of Dissolved gases Dissolved solids Suspended inorganic matter Floating solids Dissolved gases Dissolved solids Suspended inorganic matter Floating solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by Trickling filters Gravity separator having oil skimming devices Biological oxygen pond Aerated lagoons Trickling filters Gravity separator having oil skimming devices Biological oxygen pond Aerated lagoons 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 1000 2000 500 5 1000 2000 500 ANSWER DOWNLOAD EXAMIANS APP
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