Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 105 145 85 125 105 145 85 125 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants, if present in atmosphere is detectable by its odour? NO₂ SO₂ CO CO₂ NO₂ SO₂ CO CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. None of these Catalytically convert SO₂ to SO₃ in Reduce SO₂ content in Increase the dew point of None of these Catalytically convert SO₂ to SO₃ in Reduce SO₂ content in Increase the dew point of 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. Ortho-xylene None of these Coal ash Potassium cyanide Ortho-xylene None of these Coal ash Potassium cyanide 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 Proportional to the viscosity & density of the gas Proportional to the pressure of the gas Inversely proportional to viscosity of gas Both B and C Proportional to the viscosity & density of the gas Proportional to the pressure of the gas Inversely proportional to viscosity of gas ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 1.8 13.4 7.3 6.2 1.8 13.4 7.3 6.2 ANSWER DOWNLOAD EXAMIANS APP
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