Environmental Engineering in CE Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to Shear forces Neither A nor B Reynold stresses Both A & B Shear forces Neither A nor B Reynold stresses Both A & B 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 Aerated lagoons Gravity separator having oil skimming devices Trickling filters Biological oxygen pond Aerated lagoons Gravity separator having oil skimming devices Trickling filters Biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO₂, H₂S & NO₂ CO, CO₂ & SO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO₂, H₂S & NO₂ CO, CO₂ & SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Carbon monoxide Acetylene Hydrogen Petrol vapor Carbon monoxide Acetylene Hydrogen Petrol vapor ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Sulphur dioxide Phosgene Methyl iso-cynate (MIC) Carbon monoxide Sulphur dioxide Phosgene Methyl iso-cynate (MIC) Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Keeping the pH value of feed water just below 7 Preheating of feed water Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water Keeping the pH value of feed water just below 7 Preheating of feed water Reduction in hardness, silica & alumina in feed water Eliminating H₂S in feed water ANSWER DOWNLOAD EXAMIANS APP
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