Environmental Engineering in CE Which of the following is not a weightless pollutant? Noise pollution SPM Thermal pollution Radioactive rays Noise pollution SPM Thermal pollution Radioactive rays ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called Thermosphere Stratosphere Troposphere Mesosphere Thermosphere Stratosphere Troposphere Mesosphere 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 Biological oxygen pond Trickling filters Aerated lagoons Gravity separator having oil skimming devices Biological oxygen pond Trickling filters Aerated lagoons Gravity separator having oil skimming devices ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is Both B and C Inversely proportional to viscosity of gas Proportional to the pressure of the gas Proportional to the viscosity & density of the gas Both B and C Inversely proportional to viscosity of gas Proportional to the pressure of the gas Proportional to the viscosity & density of the gas ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan Both A & B With greater number of blades Of increased diameter Neither A nor B Both A & B With greater number of blades Of increased diameter Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Filtration Coagulation Sedimentation Disinfection Filtration Coagulation Sedimentation Disinfection ANSWER DOWNLOAD EXAMIANS APP
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